Choose your bulb OSRAM POWERBALL HCI - TS based on the power (70W or 150W) and hue (NDL or WDL) WDL = hot light as light halogen, NDL = white light.
Bulb metal halide OSRAM HCI-TS 70W/942 NDL. Light bulb of the highest quality. Power 70W. The burner ceramic gives this bulb a better colour rendering. Life span 10000 hours. Socket Rx7s. Tint : cool white 4200K. Very good luminous flux.