T3 Type Halogen Light Bulb, 1500 Watts, 240 Volts Long Life 3,500 Hours, Lasts Up To 6 Times Longer Than Standard Halogen Bulbs 254MM Version, RSC Double Ended Base 10" Maximum Overall Length Pure Tungsten Minimizes Heat and Provides Crisp White Light SIX PACK - 1500 WATT T3 DOUBLE ENDED HALOGEN LIGHT BULB - 240 VOLT - T3 TUBULAR SHAPE - LONG LIFE - Supra Life tungsten halogen lamps provide 3500 burning hours and last up to 6 times longer than standard halogen bulbs! Supra Life tungsten halogen lamps 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.