Has anyone tried to use a worklight as the brooder heat source? I have more chicks coming next Monday or Tuesday and I need to have another brooder lamp. I could use the one I have now for the new chicks, but my older chicks now are only 3 weeks at most, so they still need one too. Do you think I could use a worklight for the older ones and use the brooder lamp for the newbies? The older ones have feathers on their wings and on their backs, if that makes a difference.