Best picks

Best 6 Inch Canless Recessed Lighting: Top 9 Picks (November 2026)

Updated on · By the Lunareb team

The best best 6 inch canless recessed lighting include the Meconard 4 Pack 6 Inch 3CCT LED for most rooms, the HALO HLB Canless LED Recessed Lighting 6 for bright or dim rooms, and the Amico 12 Pack 6 Inch Canless Wafer for a whole floor.

On this page (8 sections)
  1. Best 6 inch canless recessed lights compared
  2. How the 6 inch canless recessed lights compare
  3. How we chose these canless lights
  4. What should you check before buying 6 inch canless lights?
  5. Can a 6 inch canless light go in a bathroom or shower?
  6. How many 6 inch wafers light a room well?
  7. Should you pick a smart light or a plain white one?
  8. The verdict on the best 6 inch canless recessed lighting

The best 6 inch canless recessed lighting for most rooms is the Meconard 4 Pack 6 Inch 3CCT LED, with 1050 lumens, three color choices and a wet-rated body that works in bathrooms and soffits. Pick HALO if you want selectable brightness, or Amico if you're lighting a whole floor.

Canless wafers skip the metal can and mount straight to drywall, so they fit ceilings with as little as 2 inches of clearance. The catch is choice: nine models here look alike in photos and differ in color settings, brightness and where they're safe to install.

This guide sorts them by the job each one does best.

If you're set on a smaller aperture, our roundup of 3 inch recessed lighting covers the compact options. Our main guide to 6 inch LED recessed lighting goes deeper on output and layout.

Our picks at a glance

  1. 1 Meconard 4 Pack 6 Inch 3CCT LED
    Best for most rooms

    Meconard 4 Pack 6 Inch 3CCT LED

    9.6/10 our score

    See it on Amazon
  2. 2 HALO HLB Canless LED Recessed Lighting 6
    Best for bright or dim rooms

    HALO HLB Canless LED Recessed Lighting 6

    9.4/10 our score

    See it on Amazon
  3. 3 Amico 12 Pack 6 Inch Canless Wafer
    Best for a whole floor

    Amico 12 Pack 6 Inch Canless Wafer

    9.2/10 our score

    See it on Amazon
  1. 4HALO HLB LED Recessed Lighting 6

    HALO HLB LED Recessed Lighting 6

    Best for smart home control
    Check it
  2. 5DAMINY 24 Pack 6 Inch Canless WaferCheck it
  3. 6NUWATT Canless Recessed Lighting 6 InchCheck it
  4. 7Meconard 4 Pack 6 Inch 5CCT LED

    Meconard 4 Pack 6 Inch 5CCT LED

    Best for nighttime trips
    Check it
  5. 8Govee Smart Recessed Lighting 6 Inch

    Govee Smart Recessed Lighting 6 Inch

    Best for colored accent light
    Check it
  6. 9VOLISUN 24 Pack 6 Inch 5CCT

    VOLISUN 24 Pack 6 Inch 5CCT

    Best for budget whole-house packs
    Check it

Best 6 inch canless recessed lights compared

The top pick wins on balance: bright enough for a kitchen, rated for wet spots, and sold in a pack size that fits a single room. Every other light here is the best choice for one specific need.

1

Meconard 4 Pack 6 Inch 3CCT LED: Best for most rooms

Meconard 4 Pack 6 Inch 3CCT LED, best 6 inch canless recessed lighting
9.6/10Our score
  • 1050 lm at 12W
  • 3000K, 4000K and 5000K selectable
  • IC rated and wet rated
  • 0.47 in thick

A slim, bright wafer light with three color choices and wet-rated construction. It covers kitchens, bathrooms and soffits with one fixture type.

See it on Amazon

Pros

  • Wet rated for bathrooms and soffits
  • Three color temperatures set before installation
  • 0.47 in body fits tight ceilings

Cons

  • Only three color choices
  • Junction box needs cable access

Meconard's 3CCT pack is the safest first buy for a typical home. The 12W fixture puts out 1050 lumens, about the light of a 110W halogen, and its 0.47 inch body slips under joists and ductwork without cutting into the room.

The slim housing measures 6.7 inches across but only 0.47 inches deep, so it clears tight ceiling spaces.

Three settings cover warm, neutral and daylight white at 3000K, 4000K and 5000K. Set the color on the junction box switch before you push the light into the ceiling.

The fixture is IC rated and wet rated, so it handles insulation contact and shower steam without a separate trim. A frosted lens spreads the light to avoid glare on counters and in eyes.

Spring clips sit on top of the housing and grab the drywall firmly. A 1:1 hole template comes in the box to keep cutouts even.

The junction box sits at just 1.4 inches thick with a 14.6 inch cable and push-and-click connectors. The rated life is 50,000 hours.

The trade-off is color range. If you want a 3500K option, HALO and Amico offer five settings instead.

For most kitchens and bathrooms, three is enough. It ships as a four-pack, which suits a single room without leaving many spares.

Meconard 4 Pack 6 Inch 3CCT LEDCheck it on Amazon
2

HALO HLB Canless LED Recessed Lighting 6: Best for bright or dim rooms

HALO HLB Canless LED Recessed Lighting 6, best 6 inch canless recessed lighting
9.4/10Our score
  • 800, 1000 or 1200 lm selectable
  • 2700K to 5000K selectable
  • Dims to 5% with a compatible dimmer
  • IC rated and wet rated

HALO lets you match brightness and color to each room and dim low for evening light. The adjustable junction box helps in awkward ceiling spaces.

See it on Amazon

Pros

  • Three brightness levels
  • Five color temperatures
  • Dims down to 5%

Cons

  • Needs a compatible dimmer for its lowest level
  • Higher cost than the Meconard pick

HALO's HLB line is the pick when one room needs more light than another. The same fixture switches between 800, 1000 and 1200 lumens, and between five color temperatures from 2700K to 5000K.

That covers a dim hallway and a bright kitchen with one model.

Pair it with a compatible dimmer and it drops to 5% brightness, which is low enough for a late-evening kitchen without a separate night light. The junction box can be repositioned, so you can slide it away from a joist rather than forcing the cutout to fit the wiring.

It's wet rated for showers and covered porches, and its airtight build keeps conditioned air from leaking into the attic. HALO also rates it for contact with insulation.

The matte white finish blends into most ceilings.

The unit weighs about 1.2 pounds, so the spring clips carry little load. Its housing stands 2.5 inches deep, thicker than the slimmest wafers here, so measure clearance before a row through a shallow bay.

The cost is the catch. You pay more per fixture than the Meconard pack, and the dimmer is an extra part.

Choose it for rooms where brightness varies by time of day.

HALO HLB Canless LED Recessed Lighting 6Check it on Amazon
3

Amico 12 Pack 6 Inch Canless Wafer: Best for a whole floor

Amico 12 Pack 6 Inch Canless Wafer, best 6 inch canless recessed lighting
9.2/10Our score
  • 1050 lm at 12W
  • Five color temperatures
  • Damp rated
  • 12 fixtures per pack

A 12-pack gives you enough fixtures to light a whole floor in one order. The five color settings let each room look different without extra bulbs.

See it on Amazon

Pros

  • 12 fixtures cover a large project
  • Five color temperatures
  • Aluminum housing

Cons

  • Damp rated rather than wet rated
  • Bulk pack leaves spare fixtures if you need only a few

Amico's 12-pack suits a project that runs past one room. Twelve 1050 lm wafers cover a kitchen, a hall and a bathroom with fixtures left over, and the five color settings at 2700K, 3000K, 3500K, 4000K and 5000K let each space read a little differently.

The junction box needs only 2 inches of ceiling space, so low basements and drop ceilings are fair game. Amico advises a 6 1/4 inch cutout, which is slightly wider than some 6 inch trims, so measure before you cut.

The light stands 0.9 inches deep.

The housing is aluminum rather than plastic, which helps the LED run cooler over its 50,000 hour life. The light is damp rated, so it's fine over a vanity but not in a spot where water sprays it.

The same 12W draw equals a 110W halogen and saves up to 90% on energy.

If your project is a single small room, the 12-pack leaves unused fixtures on the shelf. For a whole floor or a remodel, the pack price per light is hard to beat at this score.

Amico 12 Pack 6 Inch Canless WaferCheck it on Amazon
4

HALO HLB LED Recessed Lighting 6: Best for smart home control

HALO HLB LED Recessed Lighting 6, best 6 inch canless recessed lighting
9.0/10Our score
  • Wi-Fi with the WiZ app
  • 2200K to 6500K and 16M+ colors
  • 900 lm output
  • Works with Alexa, Google Assistant and HomeKit

A color-changing smart wafer light that works over Wi-Fi without a hub. It suits rooms where you want scenes and schedules more than a plain downlight.

See it on Amazon

Pros

  • Full color and tunable white
  • Voice control and app schedules
  • Wet rated for showers and soffits

Cons

  • Needs a strong Wi-Fi signal at the ceiling
  • Lower light output than the top pick

HALO's smart version is for buyers who want color and scenes, not just white light. The WiZ app sets the CCT from a candle-like 2200K up to 6500K daylight and adds 16 million colors, with groups, schedules and voice control through Alexa, Google Assistant or HomeKit.

You can also pair lights to a switch with WiZ Click.

It puts out 900 lumens, a step below the top pick, so plan a slightly denser layout in a large kitchen. The upside is flexibility: one fixture can shift from warm evening light to daylight for cleaning without a ladder.

The canless body needs no housing or junction box, and it's rated for wet locations, so a shower is a fair spot. A strong Wi-Fi signal at the ceiling matters more than usual, since the light connects directly to your network.

The body stands 1.2 inches deep.

Skip it for a simple closet or hallway where you'll never touch the app. Pick it for a living room, bedroom or covered patio where you'll actually use scenes.

HALO backs it with a 5-year limited warranty and rates it for 50,000 hours.

HALO HLB LED Recessed Lighting 6Check it on Amazon
5

DAMINY 24 Pack 6 Inch Canless Wafer: Best for large remodels

DAMINY 24 Pack 6 Inch Canless Wafer, best 6 inch canless recessed lighting
8.9/10Our score
  • 1100 lm at full output
  • Five color temperatures
  • 5% to 100% dimming
  • 24 fixtures per pack

The 24-pack is built for whole-house projects and keeps the same color settings across every room. Its 1100 lm output is the brightest of the multi-packs here.

See it on Amazon

Pros

  • 24 fixtures suit a full-house upgrade
  • Five color temperatures
  • Smooth dimming down to 5%

Cons

  • Damp rated, so keep it out of direct water spray
  • Large pack size raises the upfront cost

DAMINY sells the biggest pack here, 24 fixtures, for a full-house upgrade or a rental refresh. Output is 1100 lumens at full brightness, the highest of the multi-packs, and dimming runs smoothly from 5% to 100% when paired with a compatible dimmer.

Five color temperatures cover 2700K to 5000K. Set each fixture on its junction box switch and every room can match your taste without buying separate bulbs.

The 2 inch ceiling clearance requirement keeps it usable in basements. The housing is 1.05 inches deep and 6.7 inches across.

It's IC rated and FCC certified, and the junction box is thermally protected. The light is damp rated, so keep it above the shower rather than in the spray.

It uses leading LED chips to reach its output at lower power than an incandescent.

The trade-off is pack size. Twenty-four fixtures is more than most homes need, and spares take up shelf space.

It also runs on 110V to 130V only, so a 220V circuit won't work. If you're wiring a whole house in one go, this pack and its 1100 lm output make a strong case.

DAMINY 24 Pack 6 Inch Canless WaferCheck it on Amazon
6

NUWATT Canless Recessed Lighting 6 Inch: Best color accuracy

NUWATT Canless Recessed Lighting 6 Inch, best 6 inch canless recessed lighting
8.8/10Our score
  • CRI 90 color rendering
  • Five color temperatures
  • Dims 10% to 100%
  • 6 fixtures per pack

NUWATT's CRI 90 rating keeps fabrics, wood tones and food colors closer to natural light. The wet rating adds flexibility in bathrooms and covered outdoor areas.

See it on Amazon

Pros

  • CRI 90 for truer colors
  • Wet rated
  • Five color temperatures

Cons

  • Six fixtures only
  • Dimming starts at 10% rather than 5%

NUWATT targets buyers who care about how colors look under the light. Its CRI 90 rating means fabrics, wood cabinets and food read closer to how they look in daylight than under a basic LED.

The light offers five color temperatures and dims from 10% to 100% with a standard triac dimmer, a narrower low end than HALO's 5%. It's wet rated and IC rated, so bathrooms and covered soffits are both fine.

The airtight build also holds conditioned air inside the room.

Six fixtures per pack fit a kitchen or a pair of bathrooms without much waste. That makes it easier to buy exactly what you need than the 12- and 24-packs.

The kit includes a cutout template, a junction box and water-resistant twist connectors. It stands 1 inch deep and 6.88 inches across.

The extra color accuracy costs more per light than the Meconard pack. Choose NUWATT for a room where color matters, like a kitchen with painted cabinets or a bathroom vanity, rather than a utility space.

NUWATT backs it with a 5-year warranty and in-house technical support.

NUWATT Canless Recessed Lighting 6 InchCheck it on Amazon
7

Meconard 4 Pack 6 Inch 5CCT LED: Best for nighttime trips

Meconard 4 Pack 6 Inch 5CCT LED, best 6 inch canless recessed lighting
8.6/10Our score
  • 2000K amber night light ring
  • Five color temperatures
  • 1050 lm main light
  • Dims 3% to 100%

The trim glows soft amber when you flip the wall switch twice, so hallways and kitchens get a low light without a second fixture. The main light covers full brightness.

See it on Amazon

Pros

  • Amber night light built into the trim
  • Five color temperatures
  • Dims down to 3%

Cons

  • Color is set at the junction box and locked
  • Night light mode needs a quick power cycle

This Meconard model adds a 2000K amber ring around the trim. Flip the wall switch twice and the light switches from its main white output to a soft glow for nighttime trips to the kitchen or bathroom.

No extra controls or app are needed.

The main light is 1050 lumens and dims down to 3%, which is about as low as a standard dimmer goes. Five color temperatures from 2700K to 5000K are set on the junction box and locked after installation.

The body is 0.47 inches deep.

It's IC rated and damp rated. Keep it away from direct water spray in a shower, but it's fine in a hallway, a bedroom or over a bathroom vanity.

If the lights get out of sync, cutting power for more than 8 seconds resets them to the downlight mode.

If you want a night light without adding a second fixture, this is the pick. If you only need plain white light, the 3CCT pack does the same job for less.

Our guide to recessed lighting with night light covers the other options.

Meconard 4 Pack 6 Inch 5CCT LEDCheck it on Amazon
8

Govee Smart Recessed Lighting 6 Inch: Best for colored accent light

Govee Smart Recessed Lighting 6 Inch, best 6 inch canless recessed lighting
8.1/10Our score
  • RGBWW main light with RGBIC backlight
  • 1100 lm output
  • 2700K to 6500K adjustable
  • Works with Alexa, Google Assistant and Matter

Govee adds a segmented RGBIC backlight behind the main white light. It suits media rooms and game rooms more than bathrooms or kitchens.

See it on Amazon

Pros

  • Segmented color backlight
  • Bright 1100 lm white light
  • App scenes and voice control

Cons

  • Not compatible with wall dimmers
  • Needs more than 2 inches of ceiling clearance

Govee's smart light puts a segmented RGBIC backlight behind a 1100 lm white main light. The backlight splits into zones you control in the app, so a game room or media wall gets color that follows the screen.

White light runs from 2700K to 6500K. The app offers 80+ scenes and works with Alexa, Google Assistant and Matter.

It's bright enough to serve as the main light in a bedroom or den. The white light dims from 1% to 100% in the app.

Two limits matter. It's not compatible with wall dimmers, so all control goes through the app or voice.

It also needs more than 2 inches of ceiling clearance, unlike the slimmer wafers here. The housing stands 1.4 inches deep and 7.83 inches across.

It connects over 2.4GHz Wi-Fi and Bluetooth. The kit includes four downlights, four junction boxes, eight spring clips and twelve wire terminals.

Pick it when color is the point: a den, a kid's room or a basement bar. For a bathroom or a plain hallway, a wet-rated white wafer is the better fit.

Govee Smart Recessed Lighting 6 InchCheck it on Amazon
9

VOLISUN 24 Pack 6 Inch 5CCT: Best for budget whole-house packs

VOLISUN 24 Pack 6 Inch 5CCT, best 6 inch canless recessed lighting
7.8/10Our score
  • 1080 lm at 13W
  • Five color temperatures
  • 5% to 100% dimming
  • 24 fixtures per pack

A large, low-cost pack for a rental or flip where you want consistent light in every room. The output and dimming match pricier wafers on paper.

See it on Amazon

Pros

  • 24 fixtures in one order
  • Five color temperatures
  • Energy Star certified

Cons

  • Highest wattage in this group at 13W
  • No wet location rating

VOLISUN's 24-pack is the low-cost route to a full house. Each fixture gives 1080 lumens from 13W and dims from 5% to 100% without flicker or noise.

Five color temperatures from 2700K to 5000K are set by a slide switch on the junction box. The IC-rated housing touches insulation safely, and the ETL and UL listings cover the housing and wire terminals.

Installation uses the same cut, connect and clip steps as the others. The body stands 0.47 inches deep.

It uses slightly more power than the 12W models here, so a house full of these costs a bit more to run. It also has no wet rating, which rules out shower installations.

It works on 90V to 130V and ships with a circle paperboard template and 72 wire terminals. The 5-year service covers defects within that window.

For a flip, a rental or a garage where you want even light in every room at the lowest upfront cost, the pack works well. For a main bathroom, spend a little more on a wet-rated light.

VOLISUN 24 Pack 6 Inch 5CCTCheck it on Amazon

How the 6 inch canless recessed lights compare

The table below puts the key differences in one place. Cutout size runs close across the group, so the real choices are color settings, brightness and where each light is rated to go.

ProductBest forCutoutBrightnessRatingOur score
Meconard 4 Pack 6 Inch 3CCT LEDmost roomsAbout 6.2 to 6.6 in1050 lmIC rated and wet rated9.6
HALO HLB Canless LED Recessed Lighting 6bright or dim roomsAbout 6.2 to 6.6 in800, 1000 or 1200 lmIC rated and wet rated9.4
Amico 12 Pack 6 Inch Canless Wafera whole floor6 1/4 in advised1050 lmIC rated and damp rated9.2
HALO HLB LED Recessed Lighting 6smart home controlAbout 6.2 to 6.6 in900 lmIC rated and wet rated9.0
DAMINY 24 Pack 6 Inch Canless Waferlarge remodelsAbout 6.2 to 6.6 in1100 lmIC rated and damp rated8.9
NUWATT Canless Recessed Lighting 6 Inchcolor accuracyAbout 6.2 to 6.6 in1050 lmIC rated and wet rated8.8
Meconard 4 Pack 6 Inch 5CCT LEDnighttime tripsAbout 6.2 to 6.6 in1050 lmIC rated and damp rated8.6
Govee Smart Recessed Lighting 6 Inchcolored accent lightAbout 6.2 to 6.6 in1100 lmNot rated for wet locations8.1
VOLISUN 24 Pack 6 Inch 5CCTbudget whole-house packsAbout 6.2 to 6.6 in1080 lmIC rated7.8

How we chose these canless lights

We compared the specs that decide whether a light fits your ceiling and your room. Cutout and body depth came first, since a wafer that won't clear a joist or duct is no use.

Body depth ranges from 0.47 inches on the Meconard wafers to 2.5 inches on the HALO HLB.

Next we weighed output and dimming. A 1050 to 1200 lumen light covers most rooms, and a low dim floor matters in bedrooms and hallways.

The dim floors here run from 1% to 10%, so a nightstand or hallway light needs a low setting. Color settings counted too: three temperatures cover the basics, while five give each room its own look.

Finally we checked ratings. Wet-rated lights go in showers and soffits, damp-rated ones handle bathrooms and basements, and IC rating matters anywhere insulation touches the fixture.

The Meconard 3CCT and HALO models carry wet ratings, while the Amico and DAMINY packs stop at damp. Our score weighs these specs and features against what most people shopping for 6 inch canless lighting actually need.

What should you check before buying 6 inch canless lights?

Check the cutout size and the ceiling clearance first. Most 6 inch wafers need a hole near 6 1/4 inches and about 2 inches of depth, but a few need more.

Cutout and trim size

Measure the template that comes in the box against your planned hole. A cutout that's too wide leaves a gap the trim can't hide.

Amico advises 6.2 to 6.6 inches, while others use a 1:1 template to keep it simple. The trims themselves measure about 6.69 to 7.83 inches across, so a hole cut to the template still sits under the edge.

Ceiling clearance and joists

The thinnest wafers here sit under half an inch deep. Govee needs more than 2 inches, so check before you plan a row through a joist bay.

If a joist sits where you want a light, shift the light rather than cutting the joist. The spring clips need only a little room behind the drywall, so a shallow bay is fine for most of these lights.

Color temperature settings

Three settings cover warm white, neutral and daylight. Five settings add 3500K and sometimes 2200K for a candle-like warm.

Set the color on the junction box before installation, because most models lock it afterward. The Meconard night light model is the one to watch here: its color switch is set before the fixture goes up and can't be changed from the wall switch later.

Can a 6 inch canless light go in a bathroom or shower?

Yes, but the rating decides where. A wet-rated light handles a shower or a spot with direct water spray.

A damp-rated light belongs over a vanity or in a humid room without spray. The difference matters most in a steam shower, where moisture sits on the trim.

The Meconard 3CCT, HALO HLB, HALO smart and NUWATT lights are wet rated. Amico, DAMINY, the Meconard night light model and VOLISUN are damp rated.

Govee carries no wet rating, so keep it out of bathrooms.

If your bathroom has a steam shower or an open spray, spend the small extra on a wet-rated model. It's the one spec that's hard to work around later.

For smaller shower layouts, the 4 inch canless options fit tighter spots.

How many 6 inch wafers light a room well?

Plan one 6 inch wafer for about every 16 to 25 square feet of ceiling. Six inch lights are brighter than 4 inch ones, so most rooms need fewer fixtures.

A 1050 lm wafer covers more floor than a 700 lm 4 inch model, so the count drops.

A 12 by 12 foot kitchen takes four to six lights on two or three rows. A small bathroom needs two, one over the vanity and one near the shower.

A hallway usually takes one every 8 to 10 feet.

Keep lights about 2 feet from walls so the beam lands on counters and floors, not on the wall. For a room with a sloped ceiling, aim the trim down the slope rather than straight down.

In a room with a dimmer, the low end of the dim range matters as much as the top output.

Should you pick a smart light or a plain white one?

Pick a plain white light unless you'll use app scenes or voice control. A smart wafer adds cost and setup, and its Wi-Fi link can be fussy at the ceiling.

A smart light earns its place in a den, a bedroom or a covered patio where color and schedules matter. HALO's WiZ model and Govee both fit that job.

HALO covers 2200K to 6500K with 16 million colors and works with Alexa, Google Assistant and HomeKit. Govee adds a segmented RGBIC backlight and 80+ scenes through its own app and Matter.

For a kitchen, hallway or bathroom, a plain 3CCT or 5CCT wafer is simpler and cheaper to run. One more point: smart lights often have lower output than the brightest plain models here.

HALO's smart model tops out at 900 lm against 1050 to 1200 lm for the plain wafers. Check the lumen figure before you swap a whole room to smart fixtures.

The verdict on the best 6 inch canless recessed lighting

The best 6 inch canless recessed lighting for most homes is the Meconard 4 Pack 6 Inch 3CCT LED. It's bright at 1050 lumens, wet rated for bathrooms and soffits, and thin enough for tight ceilings.

For a whole-floor project, the Amico 12-pack and the DAMINY 24-pack stretch one order across several rooms. Pick HALO when brightness and color need to change from room to room, or the HALO smart model when app control matters.

For night light trips, the Meconard 5CCT with its amber trim is the easy choice. NUWATT is the pick when colors need to look true, and VOLISUN suits a rental where cost comes first.

Measure your cutout and check the wet rating for each room before you order. Those two specs decide more than any brand name in this group.

Our top 3 picks at a glance

  1. 1 Meconard 4 Pack 6 Inch 3CCT LED
    Best for most rooms

    Meconard 4 Pack 6 Inch 3CCT LED

    9.6/10 our score

    See it on Amazon
  2. 2 HALO HLB Canless LED Recessed Lighting 6
    Best for bright or dim rooms

    HALO HLB Canless LED Recessed Lighting 6

    9.4/10 our score

    See it on Amazon
  3. 3 Amico 12 Pack 6 Inch Canless Wafer
    Best for a whole floor

    Amico 12 Pack 6 Inch Canless Wafer

    9.2/10 our score

    See it on Amazon

Frequently asked questions

What size hole does a 6 inch canless light need?

Most 6 inch canless wafers need a cutout around 6 1/4 inches. Amico advises a 6.2 to 6.6 inch hole.

Use the included 1:1 template and cut inside its line so the trim still covers the edge.

Can a canless wafer light replace an old recessed can?

Yes, if the old can comes out first. A canless wafer needs the housing removed so its junction box and spring clips can sit against the drywall.

If you want to keep the existing can, choose a retrofit trim instead.

Why does my canless light change color when I flip the switch?

Meconard's night light model changes mode when you cycle power quickly. Its main light and amber trim are separate modes.

Color temperature itself is set by a switch on the junction box before installation and stays locked after that.

Are 6 inch canless lights as bright as can lights?

A 6 inch wafer with 1050 to 1200 lumens matches or beats a 75W can lamp. Wattage is far lower, so a whole room costs less to run.

Check the lumen figure rather than the size label when you compare brands.