Twin-arc metal-halide lamps have longer life
Venture Lighting Europe’s Twin Arc metal-halide lamps have a life of up to 50 000 h when used with Venture’s electronic gear, suiting them to installation when relamping is costly and/or disruptive. The twin-arc configuration allows lamps to ignite very quickly if a mains failure extinguishes the other arc, instead of requiring a period of several minutes.
In normal use, the arcs alternate each time the lamp is switched on to maximise lamp life and reduce maintenance costs of relamping.
Lamps from 70 to 250 W have a 30 000 h life, increasing to 40 000 h with advanced Ventronic ballasts. 320 and 400 W versions have a life of 40 000 h, increasing to 50 000 h.
For more information on this story, click here: Nov 2011, 168
