You don't want a white light over your snake anyhow. Kind of stresses them out having the sun overhead 24/7.

I have both a red and blue bulb and the blue puts out less visible light, if that's what your concern is. The red is brighter but supposedly doesn't bother the snake.

One is a 40watt and one is a 50. I've got a 75 watt (blue) and that one is considerably hotter, so your 75 watt might be warm enough.