I bought one of starter sets about 5 months ago. It works flawlessly. I was going to buy one of the less commercial grade products from another manufacture because I thought this would be overkill. But when I compared prices the entry level set is about the same price. And I have nothing but praises for this product. It has made my life, and the welfare of my chameleons so much easier. This is literally one of the best purchases I've made. Get you one you will not regret it.