How many lamps for your tent?

[kizzycat]

I was just wondering how many clip on lights you use for your pop up spray tan tent? I only got one but I find sometimes it is better without it as it casts shadows or maybe I should have 2, but I dont want client to feel she is being "in the spotlight" literally! my lamp is also only up to 60w so wondering if I should have gone for brighter or led lamp? I bought it off ebay for a few pound. I dont want to pay the earth