So I ordered an XHP 50.2 emitter to replace in this light. I was unsuccessful in installing it however. I had a hell of a time getting the screws to go back in the place to hold the LED circuitboard. I eventually gave up and attempted to reinstall the original SST 20. However when I twisted it to turn the light on I started smelling something and there was a bit of smoke I swear. I quickly unscrewed it. I assume I had the LED in backwards. Does it make any difference as to which terminal go to which screw? Overall it was not near as easy as I expected it to be. In the process I broke my replacement LED. So overall it was a major fail.