The Hi-Tech Lamps part number F40T12/SDB is a 65 watt (65W) UV Diazo (Super Diazo Blue) lamp made by Osram. This lamp has maximum overall length of 47.78in. It is a T12 bulb with two G13 medium bi-pin bases. The average rated lifetime of this lamp is 1000 hours. This lamp is also known as Osram F40T12/SDB/65W and 24465.