Thanks for your reply.
Sorry I think I've confused you. Yes there are 10 LEDS per lamp but I will be running up to 10 lamps in total (so 100 leds), and was hoping to run them all off one circuit with the AX3022 - so each unit is 0.643 watts x 10 lamps = 6.43 watts. The AX3022 is only GBP...
Thanks for all your help
I have opened the units up, the batts are wired in series and are 3.83v fully charged. I've tested the current on a multimter and the light unit is drawing 0.168 amps
I have looked into the AX3022 switching regulator to step down 12v to 5v (max 10 watts 1.5amps)...
Thanks very much for your very detailed replies...I have had a look at some of the pre-assembled units on ebay and might order one to try it out. The problem I have is I'm not sure how to measure the current which the light unit will draw as it's been along time since I did anything with...
I have bought several remote control "LED lights" for down the stables. They have 10 superbright LEDS in the light which run off 3 x 1.2v AA NiMh batts. I cannot find a data sheet so don't know what current they draw
http://www.amazon.co.uk/Solar-Mate-Point-5-SM005/dp/B001Q3YIXK
I have a...