I'm trying to wire up a new light fitting. the fitting has an L1, an L2 & a COM - the wiring has a Live, neutral & earth - any advice on wot goes where
Not too sure what you mean - the markings you see are for a two way lighting circuit. With the switch in one position, 'com' is connected to 'L1' - with the switch in the other position, 'com' is connected to 'L2'. Only the live wires are switched here.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lighting.