I am curious if anybody here know why led warm white lifespan is shorter than cool white and daylight? Also, how do we know how bright is the light compared with the normal light watt? Wish to adopt a greener lifestyle but don't know how to make the comparison and invest in right thing. Hope someone can help here.

Terima kasih.

Need suggestions for a hall 10' x 10' with four downlight box, how many watt bulb should use per piece? Normal philip E27 bulb.

This post has been edited by Skydrop: Feb 11 2015, 10:07 PM