Lidl Led Panel

It runs very well off USB battery packs

If you are after a led panel for tracing, or you want to back-light some negatives so that you can photograph them, you should take a look in the centre isle of Lidl in the UK. They are selling a rather nice LED panel for 10 pounds. The lighting seems nice and even to me, and it works very well. It goes quite bright, so you could probably use it as a softlight as well.