High efficacy, Long life, Better color performance, Better color comformity High efficacy, Long life, Better color performance, Better color comformitywith shape to choose as follows:T, TBT, ED, BT, TT, ERBoth clear and white coated are possibleHigh light efficiency: 120lm/WLong lifetime: 10,000hHigh color index: RA80Power: 50W - 2,000W Twin Arc Metal Halide Lamp