Quad XHP 50.2 build opinions

Flashlight Modding and DIY Parts
1

The availability of the new 3 volt XHP 50.2 emitter has my mind churning with possibilities. The most obvious to me, cause I’m obsessed with maglites, is a quad build based on the Q8 reflector and LED4power’s XP/XM DTP MCPCB in a 3C mag. It has occurred to me that there are two ways to arrange the emitters depending on which voltage of emitter I buy. With two cells in series I can do 6 volt emitters in parallel or 3 volt emitters in 2S2P configuration. The driver will be a FET+1 dual channel of some flavor.

It’s going to be slightly easier to do in parallel with 6 volt emitters and I could probably get a better tint. However, I want to get as much light out the front of this rig as possible and I’m a bit concerned about the reports of fragility of the 6 volt XHP-50.2. So I’m soliciting opinions on which would be the best route to follow. Will it be 3 volt, or 6 volt? And does it really matter?

Thanks all,

Brian

2

While others could know better, just let me say that those reports of fragility are probably a thing of the past, some initial bad batches I mean. I would pay more attention to where I get the emitters from than what die configuration class (Vf) they are. If you are willing to do the reflow yourself arrow electronics has plenty of 6V options and free shipping: “in stock” XHP50B search at arrow.com

Make sure to stay below €22 order total if you do not want to mess with customs' fees for emitters sent from the USA. ;-)