Not opposed to the bulbs just didn't want to trust them and the element came from old incubator I repurposed. Maybe add light bulb?
Fans are small use phone adapter to run two of them. Only had 4 fans for the NY Hal but temps were varying by 3 degrees all the time. Now they stay within one degree. Also moved them to walls before I had them hanging in center pushing air up. As best as possible I've lined them up with element.
Light bulbs are a quick swap
What about if an element fails