Small but powerful LEDS. Don't like the strobe, though.
The device comes with one battery. You unscrew the bottom of the device, put the battery in, and screw it back together. Then you unscrew the top and use the included USB charging cord to charge the battery whenever it's low. A red light next to the USB port indicates charging and green is charged. You screw on the top to use. The button is at one end and the lights at the other. The three LED therapy lights are very small, but they seem quite powerful. They shine brightly through my hand joints. My initial impressions are that this does help with my arthritis inflammation. The light should be used against bare skin and can be held directly against the skin. One of the lights is infrared (heat), so the head can get warm and you may need to let it cool (while off) before continuing to use it. It has 10 minutes before automatic turn-off, and the head only gets mildly warm by the end of that time . The therapy area (lighted area at the end) is 0.75" across, so the downsize is the limited area that you can treat at one time while the advantage is that it's battery-powered portable. The power button sequence is: one press = on, two = off, three = strobe light, four = off. I don't like how fast the strobe light pulses and so will never use it. You never have to see the strobe if you just hit once to turn on and once to turn off (and wait before turning it back on).<br /><br />When placed on a hard surface, the little stand will hold the light pointed where you want it. I see no point to using the stand as distance decreases the penetrating power of the light hitting your skin.
Rating: 4 stars