I have two of these which I used for my fledgling quail once they were out of the brooder with its ceramic heat lamp and into outdoor cages in thequail house when it was still cold at night. I really only found out about them once I'd got the heat lamp setup, and I think in future if I hatch I shall do it the same way, ie start with the lamp and progress to the ecoglow once they are a bit more feathered up. I just had the feeling that the lamp warmed the whole brooder area, with a warmer area in the middle under the lamp and room to move away round the edges, so they were always running around when not actually sleeping, whereas when I tried swapping to the ecoglow at an early stage they tended just to huddle underneath it and not come out to feed and drink in such an active way. So I wondered if it was warm enough for them. I was using a max/min thermometer in the brooder to help me find out how much to lower the lamp at night when it was getting really cold in February after the central heating went off. When I put this under the ecoglow I couldn't seem to get it up to the temperature they needed, ie about a degree or so cooler than the incubator. I spoke to a dealer at a poultry show who told me they heat wasn't the radiant kind you get from a lamp because it was infra red. But I could see the chicks weren't warm enough, and so at least for quail I don't feel they are suitable in the early stages. Once they feathered up a bit I removed the lamp and they were fine under the ecoglow. I think I may even treat them to an ecoglow in their cages in the quail house next winter, at night - quail can stand cold, like chickens, but last winter they didn't look comfortable when it was so cold their water bottles froze overnight. I may be wrong, but the story about the infra red heat registering a lower temperature than they were actually telling me they were experiencing was not very believable. The top of the ecoglow is really just a plastic-covered plank with an element in it, and is probably fine for bigger chicks than quail or at a warmer time of the year.
They are easy to clean, dismantle for storage, and can be erected with the front higher than the back, ie on a slope so the chicks can choose how close to the heat to go. Yes, a useful bit of equipment, but shop around online, as the prices when I was looking ranged from about £45 down to £29 for the same kit. Actually one of mine was from someone on another forum who was selling his, and so I got my second one for only £15, so worth checking eBay etc.