The one day I used mine, I had made the 2 legs higher to accommodate different sizes of chicks.
My plan was to move the red light further and further away each day.
(I sold it due to moving mine outside and the lamp worked better in the situation. It did work very well.)
SIMZ, I noticed that too. Seems that when my silkie hatches chicks, they have spent most of the day outside even down to 40 degrees, and just take naps under mom.