Question 1

Are these okay to put up in ceilings with insulation?

Accepted Answer

Yes, An IC-rated downlight can come into direct contact with, and be abutted by building insulation. 
The IC (insulation contact) rating is a measure used to determine whether a recessed downlight is suitable to come into contact with building insulation.

It DOES NOT mean 'installation contract' as Michael previously stated. This is a perfect example of someone that doesn't know what they're talking about chiming in with bad information; in this case it's a major safety concern. 
The IC rating, meaning insulation contact,  will ensure there is no chance of a fire hazard due to overheating and is the safest type of recessed light.

Question 2

What’s the cutout size?

Accepted Answer

I just bought a new hole saw set, to put these light In. I used the 6 " saw witch is 152mm. We thought we would have to use a rasp or something to get 3 more mm to make 155 mm. 
But we cut the hole and my husband tried to put the light, and it fit perfect. We don't know why or how, but we right very happy it did lol. So my advice is to try to put the light in before you do anything.

Question 3

If you had a 3 plug outlet in you unfinished basement ceiling is there a way to just plug the first one into the outlet after they are daisy chained ?

Accepted Answer

Plugging affixed lights into an outlet is not per code. But you could connect all 12 lights on one 14 gage romex, wired in parallel and connected to a line direct to a fuse or a breaker. You could wire the line to the outlet you're talking about. Just make sure you use romex and make sure you don't exceed the fuse or breaker amperage with both the lights and whatever you may plug into this outlet.

Question 4

I have a 12'x12' room, should I use 4" or 6" lights and how many should I use?

Accepted Answer

I put ten 4" lights in my mich larger basement. I suggest doing some more measurements. Take your ceiling height and divide it by 2 and you should have your rough spacing between lights.

I actually fudged this a bit to get an even layout. If you have a low ceiling, you may want to go with the 6" for more spread. My ceiling was 8ft but I spaced at around 42" to make it an even layout. The result gives plenty of light and coverage to the corners.

ASIN	B07T6YD7MR
Base Color	White
Best Sellers Rank	#8,757 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Recessed Lighting Housing & Trim Kits
Brand Name	Ensenior
Brightness	750.00
Bulb Base	E26
Color	5000K - Daylight
Color Temperature	5000 Kelvin
Control Method	Push Button
Controller Type	Push Button
Customer Reviews	4.7 4.7 out of 5 stars (2,384)
Efficiency	Highly Efficient
Finish Types	Painted
Fixture Type	Removable
Included Components	Cutting Template, Instruction Manual, Junction Box, Recessed Light
Indoor Outdoor Usage	Indoor
Installation Type	Recessed
Item Dimensions L x W x H	4.72"L x 4.72"W x 0.94"H
Light Color	Daylight
Light Fixture Form	Recessed
Light Output Maximum	750 Lumens
Light Source	LED
Lighting Method	Downlight
Manufacturer	Ensenior
Manufacturer Part Number	4I-5000K-12PACK
Manufacturer Warranty Description	5 year manufacturer.
Material Type	Aluminum
Model Name	YHFCC-4I-5000K-12PACK
Model Number	4I-5000K-12PACK
Mounting Type	Ceiling Mount
Number of Items	12
Number of Light Sources	12
Other Special Features of the Product	Dimmable, Energy Efficient
Power Source	Corded Electric
Recommended Uses For Product	Indoor
Required Assembly	Yes
Room Type	Bathroom, Bedroom, Dining Room, Kitchen, Living Room
Set Name	12 Pack
Shade Color	White
Shade Material	Metal
Shape	Round
Size	4 Inch
Specific Uses For Product	Home
Specification Met	ETL, Energy Star, FCC, IC, UL
Style Name	Modern
Switch Type	Push Button
Theme	Christmas, Floral, Love, Music, Sport
UPC	791300312633
Unit Count	12 Count
Voltage	120 Volts
Warranty Type	Lifetime
Water Resistance Level	Water Resistant
Wattage	9 watts

Ensenior 12 Pack 4 Inch LED Recessed Light, Dimmable, 5000K Daylight, 750LM High Brightness, 9W 120V, 2 Pin, ERL-9X-ETL, Damp Rated, Ultra-Thin Canless Wafer Ceiling Light - ETL & FCC & IC

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