Compact Fluorescent

What is the minimum temperature to ignite the wood and a screw-in compact fluorescent lamps under 50 watts to reach this temperature?

The compact lamps develop very little heat,
but it can accumulate over time if not evacuated.
While there is some air flow, you
should be fine.
Some 1 / 2 "holes in the top of your device
should.

You can keep the bulb with your hand for a year and not get burned. So, no.

I almost took a door on fire with a PAR20 bulb was not sure if the CFL to be sure ensure that there is a couple of inches of space between bulbs ligh and wood

A fluorescent bulb uses high voltage, different gas and just a little mercury to light. Power is not really important. There really is no heat involved.
The only thing that does get warm in a fluorescent lighting fixture is the ballast and it does not heat enough to ignite a fire.

An incandescent bulb works by this principle as a heating element. This is a direct management runs through the filament that creates light when it warms up and easily take the wood on the fire.

So, no problems.

touching one with my hand as I speak. The base is slightly warm to the touch, the bulb itself is the ambient temperature. Go!