I love my ecoglow 20. I have used it for 3 hatches since buying it in january. Since your chicks are still very young, it probably needs to be on the lowest level to be effective. They will spend quite a bit of time under it at first, but that's fine as long as they are still coming out to eat and drink as needed. They will spend more and more time away from it as they get older and need less heat. It makes it harder for us to watch them, but I think they appreciated a place to hide. I also like that they don't have artificial light on them 24/7. With the ecoglow, they stuck to a normal day/ night schedule.
Yes the day/night recognition was important to me too!