... .good vitreousness modelLCWL-001Housing materiallamp body: faster radiating for aluminiumlamp cover: tempering glass technology, good vitreousness,anti high/low temperature burstlamp ... 40m*40m 35w 50m*40m 55w 60m*40mAppearance color speciesFront cover:Back cover:Red, white, black, yellowBlack, whiteLuminous flux(lm)3000lm3500lm4000lm4000lm3500lmWorking environment-40 ...