Specifications Product:Halogen Sealed Beam Voltage:12V or 24V Material:Glass+H4 halogen bulb Or Glass+Filament Actual lifetime:above 500hrs Light:High/Low PAR36 BULB Round 4405 4415 4401 4416 4505 4411 4515 PAR46 BULB 5'Round 146mm(5 3/4") DIAMETER 4000 4001 4002 4101 4402 5001 PAR56 BULB 7'Round 178mm(7") DIAMETER 6012 6014 6024 7010 5' Square 100mm x 165mm (4.2" x 6.5") 6000 6001 4651 4652 4656 7' Square 142mm x 200mm (5.6" x 7.9 ") 6002 6054 6052