Turn on automatically when there is little light falls on it. The darker it is, the brighter the LED is,
where it is quite dark even at the highest level. This is "evident to, once you get the consumption
look. According to the manufacturer the wall light swallows 0.5 Watt from the socket, which I despite an ammeter
is unable to prove, as it does not provide information under 2 watts.
Although the LED is so dark it is at night a huge help. You can orient yourself better and
move without risk.
The electricity costs keep within limits. Suppose they shine 12 hours a day, then amount to
the cost per wall light 0.61 (0.5W * 12h * 365t / 1000W * 0.28).
Overall I am very impressed by the wall lights. Both the cost and the operating costs
are very low and the effect is all the greater. My little toe thanks ;-)