Philips Master SON-T PIA Plus 70W / 220 E27; 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: E27; Voltage: 90V; expected lifespan: 20,000h; Power: 70W; Color temperature: approx. 2000K; Luminous flux: 6600lm; EEL: A +;