... 4, green lighting 5, CE, ROHS, LVD The details of GU10 bulb halogen:1, Energy saving: saving 30% energy compared with ... incandescent lamps.2, Voltage: 110v-130v, 220v-240v.3, Base: GU10.4, Life span: 2000H5, Glass available: clear or frosted.6 ... one at any time. Parameters:Certificates(partial) and company profile: GU10 halogen bulb