Everything comes from China products reviews site purchased in China
I bought a bunch of LED lamps and most gave problem. That wasn't the case this.
It is a bulb socket E27, identical to any compact fluorescent or incandescent, It has a built-in presence sensor. Just screw it works.
The lamp turns on automatically when someone goes near her and goes out after a few seconds. You can't configure anything, but works fine. In the picture below, in the Centre, can see the PIR sensor of presence.
Are 48 White LEDs that produce a very strong lighting, only reasonable, like most LED bulbs.
In the figure below I put side by side the product with a 25W bulb and another of 15W fluorescent. The LED is a little wider, but embedded in my spot without problems.
I made a video testing the brightness of this lamp in comparison with the other two shown in photo. Check it out:
