... replace 60 w incandescent lampFeatures1, Made of led light source,constant driver,optical lens,and metal or other kinds of radiator shell ... ,low temperature,long lifespan and colorful. 3,Regarding secondary light lens,it's used condenser principle of flashlight,(parabola curve ... High power led lamp cup use high light led as cold light source.It has no light pollution,with harmful chemical and fragile ...