| Type : Halogen Bulb | Brand : PhilipsShape : TubeWattage : 500 WattLinear halogen ECO lamps use a special infra red reflective coating on the inside of the envelope and a low conductivity xenon gas filler to help reduce heat loss from the filament. These two technologies help to reduce the energy required to maintain filament operating temperature. Power - 500 WType : Halogen BulbBrand : PhilipsShape : TubeWattage : 500 WattPower - 500 W