Street light
Date:2011-05-17 18:28
Status:Be resolved
Question:admin
nsmittance 93%, temperature -38-- +90 degrees.
3.LED lamp lens, mainly for the LED lights of the lens, the spot is rectangular, the material is PMMA optical material, transmittance 93%, temperature -38-- +90 degrees, anti-UV UV `rate of 30,000 hours without yellowing change,
4. Road illumination uniformity (uniformity of road surfaceilluminance) the average intensity of 0.48. Spot ratio of 1:2
5. Comply with the road illumination. (Actually 1 / 2 center spot to 25LUX, 1 / 4 cent
Best answer:
No best answer
[All answers(0)]
[Let me answer]
4/10 Next Pre Home page Last page
Back
Refresh
WAP Home
Web version
Login
08/26 01:29