I am thinking about buying this: -
http://www.ebay.co.uk/itm/7200Lm-5x...K_SportGoods_CyclAcces_RL&hash=item5d4bf2b449
Is the charger safe? I'm sure I'd heard about some of them blowing up!
Having bought many lights over the last 3 years, I would avoid anything with more than 2 led's contained in one head. They generate too much heat, lower the run time and also don't actually give you any more light to play with ( don't be sucked in by the mythical lumen count, its pure marketing lies). Each led has to be driven at a lower current for them all to work together.
Stick to 2 led's and choose a newer version of the XML led, eg. the XML2, in U2 or U3 version
Batteries and chargers are a minefield, don't ever count on getting a good set when you are paying less than £30 for a complete light set.
If someone links up a light set from
Ebay with a sensible set of specs and can say that the battery and charger they were supplied works well and gives a couple of hours run time then consider getting one of those, otherwise it could be a lot of pot luck.
I have personally sorted my battery and charger system by using a holder which takes individual 18650 cells
And then use one of these to charge the cells as required
Now I just purchase the light head itself when I want a new one.