E27 4W 380lm 3200K IR Sensor Motion Activated Warm White 8-SMD 5630 LED Light Bulb (85~265V)

Pros: First it is an LED bulb, much more environmental friendly than low energy bulbs and even need less energy than those. Second it is a 3200k warm white light, perfect for a staircase or a corridor. Third it is a perfect energy saver for places where people always forget to switch off light when not used. Forth it can be a safety device if persons have the bad manner not switching on a light when going to toilet at night.

Cons: If used for staircase ilumination, it must be close to the entrance of both sides otherwise it will switch on very late for children. A person needs to come to 1,5 - 2 meters before switching on. If installed at 2,2 meters, a little child comes very close until switching on. The IR sensor has a low electricity consumtion but permanently.

Other: I have a 4W and a 6W installed, and I plan to order more after a trial periode of 9 months. Normally they should last much longer, but this has been promised by the expensive low energy bulbs too, but does not work in my house nor at those who I know. If both pass the lifetime of 9 months, the above mentionned advantages are worth to buy more of those. And meanwhile I hope that LED gets cheaper.