I was going thru my old pics and found these and thought others may find them useful.  They are small and large size cookie tins.  The small ones (approx 6 inches round) work well for 1 gallon plastic waterers.  The Larger one works well for the wider mouth 1 gallon waterers and 2-3 gallon waterers.  I use a 25 or 40 watt bulb, depending on temps.  Typically 25 watt is sufficient.
		
		
	
	
		
	
		
	
Jody
	
		
			
		
		
	
				
			
	
	Jody
	
	
	
