I looks like I'm a little late, but 55w and 65w PC's are interchangeable.danski;18262 said:thanks for the replies..im headed over to check some of these out..sorry for the mis-info..its for a 65watt straight pin coralife aqualight..so can i use the lower wattage 55watt if selected with no problems being that its a 65watt unit?
dan