The Hi-Tech Lamps part number 64386 is a 200 watt (200W) current controlled halogen lamp made by Osram. It is intened to operate on a circuit providing a stable 6.6 amp current (6.6A). This lamp has a maximum overall length of 47mm. It is a T4 bulb with a G6.35 base and has a C Bar 6 filament. The average rated lifetime of this lamp is 1200 hours. This lamp is also known as Osram 6.6A/200T4Q/64386 and 59078.