Well just normal room lights I mean, but lamps are a bit less bright and where you want them lol. Actually the best lamp we have for taking photos is little boy's Skojig bedside kids lamp from Ikea! It has a funny little LED light bulb (you can buy packs of spares really cheap as well) and I've noticed it doesn't make the photos go orangey like other lamp light does. It's not cheap for a lamp though! I got ours from ebay as Ikea take so long to deliver.
SKOJIG Table lamp - IKEA