Recently the ballast on my Dive Rite H10 light died and while at cave adventurers decided to dive into some new territory by committing to buy 2 of the underwater light dude's new lights (LD26's) for my wife and I. Not able to just toss the H10 and the diagnosis not being very good (too expensive to send to dive rite), I reached out to Bobby "underwater light dude" for guidance... he said, "no problem"... invited me over to his shop and had my old light up and running in under 30 minutes. He gave me a demonstration of my H10 vs. his LD25 (older prototype of his new lights).... and, oh, my, god.... lets just say I am thankful that the new light will have 3 adjustable power settings... to say that his lights are bright is an understatement. I can only think of one word... Impressive.