... , sodium lamps, and metal halide lamps 2.Characteristic: with high light efficiency,&long life HID Lamp:(Mercury Lamp, Sodium Lamp, Metal ... 1)Mercury lamp(GGY50-1000) & Reflected mercury lamp(GYF100-1000)2)Self-ballest Mercury lamp(GYZ100-1000) & Reflected self-ballest ... Reflected HPS;4)Double-ended sodium lamp(70-150W,10000K)2.Characteristic:High lighting efficiency, low electrical wastage.Long life ...