Thanks to Tom who sent his Hope 2 light in for a bit of tweaking
the good news is it is doable with minimal metal cutting
Sadly I could not get a beam shot of before the tweaks
and will have one soon from after.
heres what one looks like in bits
first up it needs a switch so the hole wants opening up to take a clicky switch
Then as I have used a http://www.taskled.com Lflex driver board
it does need to be heatsinked to the light housing
and Hope have thought about this and provided a tapped post right in the correct place so a little piece of ali gets countersunk and bolted to this post
and the driver is adhered with some special thermal tape that comes with the Lflex
the old leds on stars need removing and the new ones gluing in their place I have used the latest U2 XMLs
they are a direct swop and the mounting plate is bolted back in place with some thermal goop to aid heat transfer.
I dont think it will handle the full 3 amps drive current but will give it a few tests at 2.5 amps
a few beam shots will be along when I take the hound for a walk later
Forgot to say the beam is pretty good using the stock hope optics so a bit of money saved there.
Lumens approx 1500 on full dont know what the old leds gave