A few pointers that could make a "China light" like this, a good light. and yeah i really think it would sell better then also!
- Don't "glue" the whole thing together. Impossible to service with time, and really it's just stupid.. manufacture full service kits (o-rings) for the whole light, and it could live "forever"
- Small changes to the "stock" reflecors would make the light much(!) more usable for us not diving clear waters all year. (Less light spill/ corona)
- The cabel glands you used on this have reported to tear appart the cable with time. (with other brand lights using same gland aswell)
- better cable is a must aswell. Shiny stiff fancy cabel is no good, get a solid one thats not to stiff.
- i would really like to see a toggle switch with protector. Magnetic switch have waaaay to many reports of failing with time.
The design of the lighthead i think is good! Really dont have to be so big since the driver is in the canister. But oh well. Same for canister, its good enough.. buuut yeah it could have a little better battery power/twice the size canister or something. Lenght wise i found it to be ok.
My two cents at least