Which light should I use for my coop in winter time?

You want white light that mimics the sun light, if you want to increase egg production. You want red infra-red if you want to have added heat, for some reason.

They do two different things. What is your objective?

 

Another suggestion: I use black light. It comes in 40W or 75W, the right size for my compact coop.

 

Welcome to the forum! Glad you joined us!

Like Fred said, what is your purpose? If it is heat, many of us don't use any heat in the winter, even when it gets below zero. It depends a lot on how your coop is designed and where you are located.

If it is for light, why do you want the light? If it is just so you can see in the dark, any light that you can see by will work. If it is on a timer to prevent molting and increase egg production in the winter, you need one bright enough so you can read a newspaper in there. It really does not need ot be very bright, but wattage and type depends on your coop size and design.

ECBW, why do you use a black light? What purpose does that serve? Just curious.

 

I use black light for heat to take the edge off on those super cold arctic nights. It is darker and comes in lower power than the red lights.

It does cast an interesting hue in the coop. Imagine what the Leghorn looks like.

 

Bugeyes, You don't need any light, Unless you're going in the coop at night. Then just carry a flashlight. ECBW, Super cold arctic nights, In NewJersey???
Jack