BRONCOLOR COMPATIBLE FLASHTUBEA reliable and affordable alternative to branded flash tubes, Peartree are now able to provided compatible flashtubes and domes for all top branded lighting systems at an amazing price. Most flashtubes fitted with spring contacts are polarised, therefore they have two contacts of different diameter. The flash heads also have female connectors of different diameter, and even a non-polarised flashtube has:- a 4mm contact at the minus connection- a 3.5mm contact at the plus connectionIn most cases, Peartree offers clear flashtubes (6000K)as well as colour corrected flashtubes (5500K), and also clear pyrex domes, as well colour corrected (-500K) domes. Please Note: The impulse spring must touch the flashtube. With a few millimeters gap between the flashtube and the impulse spring, the flash unit will usually work, but with a risk of occasional failure.DisclaimerThe brand-names mentioned in our documents are trademarks of their respective companies. None of them are affiliated with Peartree in any way, nor do they endorse Peartree products. When Peartree offers compatible parts, the word "compatible" means that Peartree parts will work with the mentioned equipment. Peartree parts can be different to the original ones and may generate a different effect. Specifications are subject to change without notice .