I have Dive Rite 21W HID light with 4.5Ah NiMh battery pack. Or at least I have had it.
The balast has been damaged and I sent the light for repair. I was offered an upgrade (for $250) to 24W HID because they didn't store 21W spare parts. The problem that I see is that burn time with 24W will be approx. 1:30 which is not enough. Should I consider downgrade to 10W to have enough burn time?
Feel free to suggest.