- silvery in first picture is pure alu, then I eluxate it on black,
- leds are serial conected, so I cant switch between them,
- I Buy hadband as a spare part on eb.., and It s ok for my use of lamp
- mass of lamp withouth battery pack is 140 g, but you must know that leds will be driven in hi with 500mA or 750mA (iam stell testing that-probabli will be 500mA enought) where they produce a lot of heat