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40W Commercial LED Downlight

40W Commercial LED Downlight

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Brochure CE6-18W-XXX




Data Sheet  CES


Data Sheet


Installation  CE6-18W-XXE


Installation Instruction


LM79 Report  CE6-40W-XXE


LM79 Report

6 inch

IES File  CE6-40W-XXE


IES Files

6 inch

LM79 Report  CE8-40W-XXE


LM79 Report

8 inch

3200lm Retrofit Commercial Downlight
OKT 40W Commercial LED Downlight delivers high lumens of exceptional 80+ CRI, Lifetime 50000H with 3000K, 4000K, 5000K ES color temperatures options.100-277 VAC operation with 0~10V dimmable constant current LED driver. This energy-efficient LED light can replace for most manufacturers incandescent, CFL or H.I.D. fixtures. The retrofit LED downlight for installation in all compatible recessed housings found in hotel, office spaces, major retail stores, education facilities, government buildings, hospitals etc.
Performance Summary

Models: CES-40W-XXE

Wattage: 40W

Efficacy: 80LM/W

Lumens: 3200LM

CCT: 3000K,3500K,4000K and 5000K

Input Voltage: 100-277VAC

CRI: Ra>80

PF: >0.9

LED Lifetime: >50,000H L70 minimum

Dimming: 0-10V

Tested Dimmers: Lutron ® Diva-Dvtv, Leviton ® IP-710-D

Materials: Aluminum haze trim with white trim ring

Mounting: recessed


UL, CUL, Energy Star and Damp Rated

CCT adjustable option by dip switch (3000K,3500K and 4000K)

Wattage selectable option (18W, 27W 40W)

100-347V AC Input option

Split design of led light engine and trim,  one engine allows for seamless integration of multiple trim options

Trim sizes: 6", 8", 10"

5 years limited warranty


Split Design Of Engine And Trim
One engine allows for seamless integration of multiple trim options.
6" 40W

53° Beam Angle


                           downlight led retrofit                         
8" 40W

47° Beam Angle


                           8inch Commercial downlight                         
10" 40W

55° Beam Angle


                           10 inch led downlight                         


This architectural LED Downlight for installation in all compatible recessed housings found in hotel,office spaces,major retail stores, education facilities,government buildings,hospitals etc. 


Q1: What would you do if downlight fails within warranty period? 
A1: If evidenced that failure is due to quality issue, we will send customer a new one for replacement.

Q2: What kind of lamps do the commercial downlight replace?
A2: CFL, HID, Metal halide lamp or incandescent.

Q3:  Is your commercial downlight DLC listed?
A3: Downlight is regulated to Energy Star. DLC and Energy Star are two categories of energy   saving certificates, one product can only obtain either of them.

Q4: What's the difference between AC dimmable and DC dimmable?
A4: The obvious difference is the difference of working voltage. AC120V should AC dimmable, 100-277V should DC dimmable.

Q5: Why commercial downlights are more  expensive than residential downlights?
A5: Because we use CREE chip, YG driver (cooper lighting's driver manufactuer). The watts is more higher and  less marketing competion. OKT Lighting is only one and first one who can produce this commercial downlight from China.

Q6: Do you sell can (housing)?
A6: No, we do not. But we can recommend a reliable housing factory for you. (OMD, Liteharbor)

Q7: Do you have smaller package for downlight, the shipping cost is too much.
A7: No, we don't have. It is our standard package. The shipping cost is cheap if ship by sea.

Q8: Do you offer mounting brackets as well?
A8: Yes, we can supply mounting frame.

Q9: What’s the difference between new version and old version downlight?
A9: We add one lens in new version downlight,so the light will be soft and even,there are 4” and 10” downlights more in the new version.

Noted: it is the retrofit kit version. Need an additional housing fixture to install, pls contact OKT Sales.



 6" Trim

Mounting Diameters: 6"-6.7"

 8" Trim

Mounting Diameters: 7.7"-8.4"

 10" Trim

Mounting Diameters: 10"-10.7"


 6" Housing

Hole Diameter: 6.37"

 8" Housing

Hole Diameter: 7.72"

 10" Housing

Hole Diameter: 9.54"

Hi Kevin ,Thank for selling us these downlights .the clients like it .
2015-09-22 11:07:54
OKT Lighting
2015-09-22 11:32:26
Hi Kevin ,we installed your downlights in car dearer shop ,the owner like its performance .
2015-08-25 17:56:20
OKT Lighting
2015-08-25 18:00:23
Good products! I've ordered 4 times. This downlights helped me won several projects. Tks!
2015-08-04 11:30:17
OKT Lighting
2015-08-04 14:18:36
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