Red or White bulbs for winter/daylight simulation?

[jzarabs]

Anyone have opinions on which is better/more effective? I already have the red heat lamp bulbs from the chicks which I was planning on using through winter for heat and light, but I'm wondering if I need to have a separate white light bulb for daylight simulation in the winter months??
It's pretty gray in the PNW during the day, but not extremely cold...

I have 2 lamps so could do heat in one corner of the roost and white light in the other, but is it really necessary??

 

[Giammona farm]

I just keep the same red bulb on my chicks all day and they are always fine.

 

[jzarabs]

My main concern thru winter is maintaining egg production, not too worried about warmth, we get little cold cold weather...the heat lamp should do fine for that.

 

[gingernutranger]

I live in the Seattle area and during winter I use a white light for heat. It all depends on how powerfull the light is. This year I was going to try to use a red lamp, they worked really well for chicks in the winter.

 

[Jolyn]

We used a white light and didn't lose any egg production this past winter!

 

[newchickmom]

I use a red heat light at night over the roosts, and have 2 energy-saver lights, on a timer, that I use during the day for 14 hours of light.