 400W Blacklight Mercury Lamp - H400BL Outer bulb in Wood's Glass - Operates on conventional mercury ballast SLI code: 0023971 Wattage: 400W Voltage: 135V Current: 3.25A Base: E40 Average Life: 2000 Hour Lumens: 1200lm Burn Position: Any Diameter: 122mm Length MOL: 292mm Length LCL: 178mm Thanks to a special bulb made from nickel-doped Wood's Glass, these mercury lamps represent a powerful source of blacklight at 365nm. The dark coloured envelope filters out virtually all visible light and dangerous short-wave UV rays, while allowing the deep violet and near UV-A to escape. This produces brilliant fluorescence effects with many materials. The compact source allows a powerful beam to be projected with the use of a polished aluminium reflector | 
