Each arm is about 20cm long and can be moved in all directions handy.
Unfortunately, both arms are a bit too flexible and maintain its position not particularly stable.
All too many movements should therefore not perform the reading.
Each luminaire two LEDs are installed, which can be activated by a button.
At first, a LED and both the next click is turned on.
The next time you click on the LEDs off.
The lamp base has a mounting clip that can be openable well 3.5cm wide.
Thus, the lamp can be firmly fixed to tables.
I use them to behind my computer to have a permanent light source when I umstecke cable.
I could be the bene runtime of 6 hours (simultaneous operation of both lamps with all 4 LED's) or 12 hours not check (operation of a lamp with 2 LED's) so far. But after about 2.5 hours she illuminates always in "full operation" with all the LEDs on.
Very sad, I find the use of a completely unusual hollow plug for charging.
Since almost everyone has lying around at least a micro-USB charger for charging at home, it would have made more sense to use this standard.
For this reason and because of the slightly unstable construction and of the average value for money I can only give 3 stars Unfortunately the lamp.
