I have mine hooked up to the Pixel Pals USB adapter so that I don't need to use batteries. The adapter is connected to a desktop PC USB port. This thing is bright when used with a USB connection! Looks just like Mario in the Super Mario Bros. 3 game and the color scheme comes across well. Very light in weight so it can tend to skid around on your desk. There are no anti-skid pads built-into the bottom. Instead, it's just hard plastic, but it is not at all wobbly. Just very slick plastic. You can turn it on/off with a switch on the back, but do note that when this is connected to your PC, it will stay lit when your PC is in standby mode. Only when you turn off your PC would it not be illuminated. Great, great little mini-lamp with a nostalgic feel to it.