Neat image, it sort of grows on you. I also sort of wish it were a bit straighter (it looks ever so slightly tilted to me, but I may be wrong), and that you'd gone in just a touch closer (maybe to the edge of the cherry at top left and right under the green leaf at the top). That's just an idea though. The bottom right hand side looks slightly blurry. I like the image though. ~7
the title and the image itself have no relation, in my opinion. the only explanation of what you're trying to say with the "on" switch is from the title.
I love the simplicity of this - and the message in your title fits the challenge theme (impact of electricity on society). Positioning of the key item in your composition is good. Wish the person cutting your wallpaper had cut the switch opening straight - but that's a different subject. :P Good luck!