... ,made by CNC ,Disposed by anodic oxidation .2.Led saved more power than normal filament lamp 3.Cree Q5 ... led ,Use DC/DC technology,more brightness ,4.Waterproof ... mirror, CREE Q5 bulb 2. 523-C-15, convex lens, CREE Q5 bulb, adjust focal length by zoom stretch ... cap. 3. 524-C-16, convex lens, CREE Q5 bulb. Adjust focal length by rotate cap. ...