Everybody seems to be talking about LED vs HID. I would definitely also look if your dive buddies are diving with 10 watt light or the higher wattage lights. I dove with a 10 watt light for a season (25 dives) with people who were diving 18 watt lights and it was a definite disdavantage when it came to signaling and being able to see further. My eyes would venture a look at the area that has the brighter light shining on it ,which is n this case it wasn't my light. When I went to an 18 watt I did not have those problems again.
If everybody is diving a 10 watt then my 2 cents isn't worth anything.
Jim
If everybody is diving a 10 watt then my 2 cents isn't worth anything.
Jim