high pressure mercury lamp Self-Ballast Mercury Lamp, mercury vapour lamp Simple Structure, No Additional Ballast Product DescriptionName of product: Projected High-pressure Mercury Lamp Features: Orientated lighting Application: The lighting for the square centre, bus station, port, factory and gymnisium Light power(W): 125W 160W 250W 500WPower voltage(V): 220V Average life time(hr): 3000 ...