Now the negatives: Although the lamp can be operated via a power pack, none is included. I have used the power supply of a charger device. This works fine, but why is not one included in the price. So expensive can not be a power supply also.
The crucial shortcoming, however, is the luminosity: According to specification the lamp 320 LED. This is true, however, the color temperature is controlled by the light intensity of 160 per warm white and cool white LED is changed in one way or another direction. Although this the luminosity as a whole remains in changing the light color obtained, the operation easier, but it means that the lamp only distributed more than the luminosity of 160 LEDs. That is, it has only half the light output that you would expect from a 320 LED light actually. Since this is so is not clear from the product description, there is of me a star deduction.
Anyone looking for a lamp with the brightness of 160 LEDs, which I can only recommend the light of Polaroid.