GORILLA WAND Is a personal & portable Light-Therapy-Device. It is more powerful than the other light-therapy devices. As a matter of fact it is more than twice as powerful as the leading brand. GORILLA WAND comes complete with an AC power adapter eye protection goggles. The total power = 7 000 mW of 660 nm wavelength light with the power density being greater than 721 mW per square centimeter It has internal and external heat sinks an internal cooling fan and comes with an AC power adapter. An optional rechargeable lithium power pack can be ordered separately. It also comes with protective eyewear.