Definitely watch the lights. I got the cheap one off of ebay. I used it a couple of times and the lights promptly burned a hole in the sides because they got so hot. I ended up making an inexpensive but really handy tent out of PVC pipe and remnant cloth. Whenever I took pics with those lights, they'd burn holes in that cloth too if I wasn't careful. They didn't have to touch the cloth, just be near it.
Then one of my cats knocked one of the lights over in the middle of the night. The switch was off but it's just a button that you press one side, it goes on, press the other side, it turns off. I don't know if she hit the switch with those big ole fluffy paws of hers or if it happened to strike the switch when it landed on the floor. But in the middle of the night, I woke up to the room filled with smoke and the carpet and some clothes I had sitting to go to charity on fire. The light had turned on and got so hot it melted the housing around it, set the carpet and clothes on fire and the light bulb was still on!!!! After putting out the fire, I chucked those lights as quickly as possible. I wasn't going to take any more chances. It was a close call that I don't want anyone else to experience.