Powering an LED strip?


I am looking to use a small LED strip on my bicycle. Something like the product below. I have no experience with LED strips, and am looking for a way to power them. I want something small & light to mount somewhere on my bike, and wondered what the best options would be? Would a 12V battery pack be suitable (see below). How long would this last roughly?



Battery pack:

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That's not a battery pack, its a mains power supply. Those LEDs will take 12Watts to run them - that's 12V @ 1 amp. So for every hour you want to run them you want around 1.5aH from the battery - run them for an hour, you need 1.5aH, 2 hours, 3 aH etc etc.
skatmandu2002 (author)  steveastrouk3 years ago
Haha, that's embarrassing! Told you I had no experience. I'd want the lights to run for as long as possible, how big are 4aH batteries likely to be?
If I were you I'd buy a dirt cheap 12V power tool - they often have 4ah batteries.
Aldi, Lidl, B+Q all do deals.
skatmandu2002 (author)  steveastrouk3 years ago
Brill idea. Thank you very much for your help!
Don't forget to tick the Best Answer box. ;-)
iceng3 years ago
Simple solution