I know LED’s are not just like incandescents but could I just buy an XHP35 emitter for around $6, connect it to 12V with sufficient current supply and have Cree’s brightest single (as in not array) LED light?
If you already have 12V Bosch drill packs, the easiest way would be to get a compatible 12V Bosch work light and upgrade it to one of the XHP emitters. It wouldn’t have to be the XHP-35, since the 50 and 70 can be wired as 12V also. They just require a special MCPCB that follows the odd wiring scheme.
Thanks. Sounds like the most elegant solution to this. My only hesitation there is that would be more than $6. Could I just directly connect one of these LED’s or the arrays you mention to the 12V supply and make my own housing?
If you’re going to buy from eBay, you really have to do a lot of research on both the product(s) and the seller(s) you’re looking at. There are a lot of disreputable people on eBay these days. I do buy stuff from eBay. But, I only buy if I can be certain the items are not fake and/or it wouldn’t hurt me if they are fake. Cree LEDs are highly over-represented by fakes in the marketplace. But, there are sellers that we know we can trust. Richard at Mountain Electronics occasionally sells on eBay (eBay id: mountainelectronics). But, if you’re in the USA, it makes more sense to buy from his store. A couple more good guys who also sell on eBay: PFlexPRO (eBay: rmbear), vestureofblood (eBay: vesture_of_blood), hkequipment (eBay: hksupport). That being said, any XHP LEDs you find on eBay probably stand a good chance of being legitimate. I don’t think the XHP line has been faked yet. You just might not get the tint and brightness bin you expect.
There's a few "safe" vendors for CREE LED's - MtnE, Intl-outdoor, Cutter.au, and of course reputable BLFers, and mihgt be a couple more. Mouser and DigiKey sell them (good source), but you don't get the exact bin and tint all the time, but might be a range of bins, so gotta be careful there as well. Plus the cost in low qty might get crazy. I've ordered colored CREE LED's though from DigiKey and Mouser and they were well spec'd and decent pricing, again, all depends.