... White/Red/Green/Blue/Yellow Surface Polyester powder spraying Material Die-cast aluminum Size ¢50(Dia.)*65mm(Height) Power 1W Single bead ... low temperature,long lifespan and colorful. 3,Regarding secondary light lens,it's used condenser principle of flashlight,(parabola curve ... design) to decrease light loss.4,Soft light,without black spot and yellow ring.5,Plating ...