Hi, the lights on my tank hood have finally given up. Previously I used to have to turn the light switch on and off a few times to get them on (they worked first time to start with of course). Now that doesn't work. I've replaced the plug fuse, bulbs and fuse in the tank but to no avail. I've seen comments about the starter or ballast but I wondered, given that I used to have to flick it on and off a few times, whether any clever person could identify the specific problem from that? Thanks in advance!