I'm looking for a small light box for product photography - in this case mostly chocolate and small cakes/biscuits - so it doesn't need to be too big. 20cm would be fine, though I've seen a few cheap ones varying from this size up to 20 inches. Both eBay and Amazon are littered with them, so there's a lot to go through. I've found a few that will take a USB input to power a light at the top of the box (which is ideal), but it would be nice to find something that also has some diffusers on both sides with build-in LED lights on those sides. Can anyone recommend such a product that doesn't break the bank, and where to find them?