Osram HQI-TS Excel. 150W WDL 3000K, Metal Halide Lamp, HQI-TS Excellence WDL 150 W, For RX7s base, Colour temperature 3000 K (WDL), Ignition voltage: 95 V, Length: 135 mm, Diameter: 23 mm, Light current: 12,000 lm, Average operation life: 12,000 hours@+*Special lamp: *@+@+•This lamp is intended for use in stage and theatre area. @+•This light bulb is not suitable for room lighting in households.