The philips hid pv cx 2x35 35 l cdm electronic ballast comes complete with strain relief and runs 2x35w metal halide lampsthis ballast is available as independent i for independent use on a false ceiling minimal lamp power spread microprocessor controlled lamp end of life detection long lifetime of 40 000 hours lamp life is increased by up to 30 for cdm lamps silent operation without hum it is also rohs compliant this philips hid pv is usually used in accent and decorative lightin