This special purpose 40W 2ft BL368 blacklight UV-A T12 tube light bulb is most commonly found in insect traps/fly killers but also enjoys numerous spin-off applications in other commercial industries as well.Recent improvements in phosphor technology have led to a new generation of UV-A lamps with much-improved insect attraction efficiency. This range, called BL368, is a premium high-performance range.The energy distribution of the BL368 lamp is a much narrower band concentrated around the spectral peak at 368nm. This is widely accepted as the most important frequency for the attraction of flying insects. The radiation at 368nm is twice as powerful as from BL350 tubes, and because of this, the lamp attracts more insects.Besides insect trapping, they also enjoy widespread applications in Diazo printing machines, chemical processing, photo polymerisation and mineral detection.This 2ft T12 tube is fitted with standard G13 2-pin (13mm apart) caps to both ends.This T12 Tube is a newer produ