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4inch Commercial LED Downlight

4inch Commercial LED Downlight

Model No

cULus, ENERGY STAR® Listed
5 years limited warranty
Damp rated

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Data Sheet LG-DM-XXD Regressed Diffusing LED Linear Fixtures


Data Sheet


Data Sheet LG-NM-XXD


Data Sheet


Installation LG2-DM-XXX



Installation Instruction

Brochure  LG Series




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The OKT 4inch Commercial LED Downlights are suitable for 100~277V Input with fired-rated Junction box, which delivers high lumens of exceptional 80+ CRI, Lifetime 50000H with 3000K, 3500K, 4000K, 5000K color temperatures options. It can replace for most manufacturers incandescent, CFL or H.I.D. fixtures with apertures of 4.1" min.to 4.7" max diameter. Easy conversion method and installation can be performed from below the ceiling without removing existing fixture.

Performance Summary

Model Number

Input Wattage14 Watts27 Watts
Input Voltage100-277V AC100-277V AC
Delivered Lumen (3000k)1078 lm1782 lm
Efficacy ( lm/w)77 lm/w66 lm/w
Color Rendering IndexRa>80Ra>80
Power FactorPF > 0.9PF > 0.9
Lifespan ( Hours)50,00050,000
Warranty (Years)55
Energy StarN/AYes
Damp RatedYESYES

This 4" led commercial downlights is widely used in hotel, office spaces, major retail stores, education facilities, government buildings, hospitals etc. 


Q1: Why the beam angle of your 4" commercial downlight is too small?
A1: If you think the 30degree in not enough, we also can make frosted lens, it can reach to 40-45degree.

Q2: What would you do if downlight fails within warranty period? 
A2: If evidenced that failure is due to quality issue, we will send customer a new one for replacement.

Q3: What kind of lamps do the 4" commercial downlight replace?
A3: CFL, HID, Metal halide lamp or incandescent.

Q4:  Is your commercial downlight DLC listed?
A4: 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.

Q5: Do you sell can (housing)?
A5: No, we do not. But we can recommend a reliable housing factory for you. (OMD, Liteharbor)

Q5: Do you have smaller package for downlight, the shipping cost is too much.
A5: No, we don't have. It is our standard package. The shipping cost is cheap if ship by sea.

Q7: Do you offer mounting brackets as well?
A7: Yes, we can supply mounting frame.

Q8: What’s the difference between new version and old version downlight?
A8: 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.


4 inch housing frame

4 inch housing frame for led downlight

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