JDD250 CLEAR 250 WATT HALOGEN BULB - 130 VOLTS - COMMONLY REFERENCED AS JTT OR JDD HALOGEN BULB LONG LIFE - Supra Life tungsten halogen bulbs use a quartz envelope for durability and pure tungsten for longer life. The regeneration cycle continuously restores the filament, creating a 6 times longer burning life and clear crisp white light. Bulborama tungsten lamps are engineered to minimize heat and provide maximum energy efficiency.
