... LED sources:24pcs SMD2835 (0.2W/pcs) Materials: Aluminum & Glass (PC) Base Type:E14Beam angle:360 degreeEnvironment Temperature:-20°C - 45°CHousing ... or krypton gases. Fluorescent bulb contains mercury.4. Full color & base type choices(1). LED can emit any color you want ... , red, blue, green and RGB/multicolor are all available.(2). Base type including: MR11,MR16,GU10,HRE27,JDRE11,JDRE14,JDRE17,JDRE27 ...