I bought these motion sensor LED lights, to light my awkward garden path. Awkward because I'd either have to dig up a fair bit of the garden to run a shielded electrical cable to get power to any lighting, and awkward because the bit that needs the light is often shaded by trees, and so the solar powered lamps I tried before these didn't work.
They are small, weatherproof and having only 1 LED each, very light on energy. So yes, you do have to run them on batteries, but so far (3 months) the batteries are lasting very well. And installed at a low level (I have mine about 30cm off the ground and spaced at about 3m apart) they give plenty of light to see where you're walking, without unnecessarily flooding a vast area with light. They come with mouting plates which you can mount with the included sticky pads, or you can screw the plate (with the included rawl plugs and screws) to your chosen surface. The lights are easy to take on and off from the mounting plate.
The motion sensor works well. The lights are occasionally set off by cats/hedgehogs etc, and you need to trim any ivy, twigs, etc that hang near the sensor and otherwise set them off. I would love to see them made available in other housing colours, for example dark green, grey and dark blue, as the white looks rather odd on the garden wall. But all in all, I'm very happy with them. I think they are good value for money and I am considering buying some more for other poorly lit entrance areas. One by the back door when fishing in the dark for my keys in my bag would be great!