The Hensel Flash Tube is a reliable replacement part that is compatible with the Integra 250 and 500 monolights from Hensel. This user-replaceable flash tube can be plugged in and removed from their sockets without much effort. It is UV-coated and therefore has a yellow appearance. The UV coating also enables the tube to counteract the excess blue at a temperature of more than 5,700° and ensures its overall color temperature is reduced to 5,500°. When handled properly during normal use, this flash tube can last for thousands of flashes before fusing out. Please note, this flash tube contains mercury.