Description de chez Thomann : Philips Master SON-T PIA Plus 600W / 220 E40; High pressure sodium vapor lamp; Design with fewer welding spots makes the lamp more robust and enables lower early failure rates than standard lamps; Socket: E40; Voltage: 110V; expected lifespan: 20,000h; Power: 600W; Color temperature: approx. 2000K; Luminous flux: 90000lm; EEL: A ++;