Or are there any sites where I can do some research on lighting for my shop? I'm in the process of reducing my electric bill and want to know what options I have to replace the prehistoric ballast and starter setup I'm currently using. I've been recommended high frequency tubes and smd LED tubes but have been given conflicting information about both. Basically, when a salesman tried to push a product, everything else is just rubbish! I'm after more solid answers, this could save me a packet in the long term!!