Bar the horrible light polluting flood light at the back of the house, I’ve managed to get around outside in pitch darkness for nearly thirteen years without incident. However, trenches, part built walls and wooden stakes present quite a hazzard in the dark so I’ve installed this light which comes on when you get near it. There’s no chance of any light pollution with this one because it’s got an energy saving light bulb in it. It saves energy because, after it’s managed to get itself going, hardly any light comes out. Still, it’s enough to stop me falling down a trench and banging my swede.