Its about heat not light. So in effect any heat source would work. I find it difficult to understand how any tech manages with a hair dryer, number one it looks tacky, number two how do you stop everything blowing all over the place!?
Infra red lamps are pretty cheap, Ikea and other places do cheap halogen desk and clip on lamps that give out enough heat for nail wraps. I've tried most brands and they all work with my halogen lamp. Go somewhere where they are on display and you can put your hand near and feel the heat yourself.