Characteristic: High luminous efficiency, low power consumption, long service life, good photochromism, white-golden ray that penetrates fog at ease.Application: Available for lighting at the road, airport, station, factory, mines, etc.Power: 35W, 50W, 70W, 100W, 150W, 250W, 400W, 600W.Voltage: 85V, 90V, 100V, 115V.Avg. Life: 16000 hours.Colour temp.: More than 2000K