hello,i believe one of my tubes,not just the the lighting bulb,is gone but i have tried googling for another replacement with little luck,can anyone help so i can purchase ideally online.
As dog watch says the tubes are not specifically 12volt. Maplin, as he also says, are one source. They do 8watt (12"), 4watt (6"), 22watt circular, 16watt 2pin 2D, 16watt 4pin 2D and 28watt 4pin 2D.
I would expect to find these and others in a good lighting shop and big DIY stores.
No you don't. As I said (above), go to your electrical wholesaler (or DIY store). As long as it is an 8watt tube, or 16watt if it is the longer tube, you will get it "off the shelf".