I'm considering one of these, a kit that includes: torch/flashlight, charger, batteries, scope mount, pressure switch. I've seen them advertised on ebay and I thought I'd ask: does anyone use one, and are they any good? If anyone answers "yes" and "yes" I'd be interested to know which supplier you used on ebay (I note several suppliers post goods from China or or elsewhere in Asia). What scope mount will I need for a 1" tube? Many thanks if you can steer me in the right direction.