why stop at 240v, take the feed from the florescent light not sure of the voltage but its kV's.
I am going to put an alarm on my garage (detached no power) and am planning on doing similar to the op to keep a mobile charged that will phone me when the alarm goes off, hadnt considered lights until this topic started, i had already considered making the handle live though but decided against as its likely to backfire, lol. (although i do know someone who used to leave his car body connected to 240V when his car was in his garage and he was on holiday)
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