This is the head for a Photona strobe. It can be fired at full power with a 2400W generator. It has been in storage as its usage has decreased. There is some blackening on the flash tube, but it hasn't been used much, so I think it can still be used for a long time. I have tested its operation at maximum and minimum power. The modeling light also turned on. If you have any questions before purchasing, please ask in the comments and I will provide additional images, etc. Basically, no returns and no refunds, please.