first off, WHAT a site this is, love it, anywho,every time i plug my 400w lamp into the mains it sparks at the socket and wont come on, it has an integral ballast .i have had the lamp working once (to try it) and took it down because i had work on the grow room, so when i finally got ready to grow. BANG. no lights so could some sparky from uk help i would be eternally gratefull. ta
forgot to say i cut the lead shorter could this affect itthe pins on plug have sparked a bit and burnt slightly please help us