Metal halide lamps: Characteristic: High in luminous effciency, long in service life, fine inphotochromism. Application: Suitable for lighting the place of stadium, exhibition center, large sizedepment store, play field, street and public square... Wattage: 50W/70W/100/150W Luminous Flux: 4260lm/5600lm/8000lm/11250lm Average Life: 6000H/8000H/8000H/8000H Base: E27/E26 Max diameter: 56mm Max length: 141mm Buining Position: Univeral