This is our first time with any of this. We decided to make our own incubator, since what I saw at the store was nothing more than what we were able to make ourselves for a fraction of the cost anyway. We've been running it for a while and getting out all of the kinks, in preparation for eggs coming in a couple of weeks. It's been holding steady at 102 and this humidity for a while. We used a 40W incandescent bulb on a dimmer to control the heat, which we're getting really good at. The top can be raised and lowered for ventilation. The surface is some sort of material that you'd make exercise pants out of, found it at Walmart for 50 cents a yard so I bought a couple of yards for future use too. The bottom has water in it. The window is a piece of scrap acrylic that we glued in with silicone, and the light fixture is a bulb screwed into a simple plug-in socket that's on a dimmer extension cord. We'll keep it running until we get our hatching eggs in a couple of weeks to get a feel of how it works over time. There's plenty of room in there for all of the hatching I'll ever be doing. So far so good!