halogen bulb, halogen bulb A55, halogen A55 advantage 1.More energy saving than incandescent bulb and much cheaper than CFL energy saving lamps and LED lamps. 2.Long service life averagely up to 2000hrs;Thus, it is an excellent replacement for traditional bulbs. 3.High lumen efficiency halogen bulb provides good illumination effect. 4.Clear bulb without stain guarantees high brightness throughout the whole life of the lamp. Frosted bulb and aluminum coated bulb for option. Parameters: A55 halogen bulb