I have a 10 watt HID wreck light & a 10 watt HID slimline light. The wreck light's bulb keeps coming loose & not working when I need it to. I have had no problems out of the slimline light. Its a pain to have to get back out of the water, dry off a bit & then disassemble the test tube to re tighten it & put it all back together. While I'm probably not the gentlest person in the world with it, I also don't just throw it around. I am not interested in going to LED yet because I do not feel like the technology is there just yet to match the HID's. Any ideas or anything I can do to getthe bulb in a bit tighter without messing up the light?