I purchased this from Amazon about a month ago and tested it upon arrival, but I haven't used it since, so I'm putting it up for sale. Therefore, it's as good as new. The following is a quote from the Amazon website description: IRIS OHYAMA Desk Light Qi Wireless Charging 4-Step Dimming High Color Rendering LDL-QFD-W White Product size (cm): Width approx. 10.5 x Depth approx. 39.5 x Height approx. 31 ● Weight: approx. 0.5 kg Power cord length: 1.8m ● Light source used: LED Rated power consumption (at maximum illumination): 4.0W ● Rated power supply voltage / Main unit rated input voltage: AC100V (50Hz/60Hz) / Main unit: DC9V Wireless charging output: 9.0V 1.0A Main materials (body): ABS resin