The Osram HBO 200 W/2 TM L2 is a 200 watt Mercury Short Arc lamp with 9500 lumens visible light output. Typical lifetime is 200 hours. This lamp has two 8-32 UNC-3A bases on the 17mm diameter x 128mm long clear double-ended bulb. This item is made by Osram, and is also commonly available from Ushio. It is seen as alternative part numbers 69223, HBO200W/2-TML2, HBO200W2TML2, HBO-200W/2TM, HBO200TML2, HBO200TM, USH-200DP, USH200DP, 5000276 and other variations. Mercury Lamp Product Warning: Mercury Short Arc lamps emit harmful ULTRAVIOLET RADIATION, are under HIGH PRESSURE, require a HIGH VOLTAGE ignition, and can GENERATE OZONE (unless designated "OFR".) These lamps get VERY HOT during operation, and remain hot after operation for a significant time. Avoid direct or reflected exposure as this can cause serious skin burns and eye injury. This lamp is now obsolete by Osram/Sylvania. The Ushio USH-200DP is an alternative to the Osram HBO 200 W/2 TM L2.