High cost for canister diving lamps are different :
1. ) construction was type of experimentation GO / NO GO nothing serious design
2.) not optimized production ( derin costs , they made canisters from ''single rod'' because they don't know how to mould delrin and other thermoplastic ) , so waste was huge.
H made that with latest '' granat'' style canisters
3) market is small / distributors prices
4) at start HID bulbs and ballast were exsotic - they still are and small quantity of producers rises prices
and dictate market
5) leds , optics , drivers are relatively cheap , but , producers started instead of optics beam construction and design , they work with combination of different parts trys and learning errors
( typical is tilly tec ;-)) ) Very few lights have behind idea of true construction of new light for me is that idea behind DiveXtras but have some mistakes and it was not (?) successful.
6) after all that years there is still no correct test procedure that could evaluate and right score diving lamp and as feedback give back right price on market.
7) I don't know for USA but in Europe if you want to sell something and get CE certification you need to pay some serious test procedures which costs. ( oh.. I remember in USA is all OK till someone hurts and that one most prove that , he hurts from specific product ( and if he die ?) ...( that is trade problem between Europe and USA btw right now)
and many , many other things
But high quality light is still expensive . I build several lights and I come with price without charging my work on 1/2 price of lamp in shop. That mean top materials and good construction )
I can simply conclude that other half go for work costs , maintenance of machines or place of production , saving some money , R&D....
I still remember MB SUB close workshop , with such wonderful ideas they have and good construction and production 8 it was my frst most wanted light at start of my light and diving career )
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Mostly Chinese don't know what they do. They produce something .... in huge quantities and cheep
in other words they pollute world. And of course they copy and they copy a lot ! They copy so much that they copy also errors ( sometime huge ) from originals.
They are capable to made good light but i don't know do they have interests to do something like that?