All of the Caribbean Sun Boxes work on all voltages world-wide with no voltage adapter needed The Caribbean Sun Box is small and fits on any desk or counter-top,yet delivers the same powerful 10,000 LUX of light that larger, bulkier lights do. The Caribbean Sun Box is a highly effective new light therapy light box that uses 108 LED lamps to treat the symptoms associated with Seasonal Affective Disorder (SAD). LEDs provide long life, pure white light, and are shock and vibration resistant. They serve to reduce the unit's size and weight, yet they deliver a full 10,000 LUX of cool light. Amazingly, they only use 9 watts of power! Size is 9"x 5"x1 1/4". Put it on your desk or table-top. It comes with a swing-out leg that allows you to position the box at a comfortable angle for best exposure. Take it with you when you travel. It has a carefully constructed body made of steel, yet it weighs less than 3 lbs. Filters 100% of the UV rays.