Wattage (W) is a measure of brightness. Generally, the higher the wattage (W) value, the brighter the light, and the lower the wattage (W) value, the darker the light. We believe that minimizing the effect of light on the eyes as much as possible leads to safety and security. For this reason, Matsukaze LED lights use a rated output of DC5V/1A/5W. Matsukaze LED Glue is a product with enhanced light-responsive performance, We recommend the best combination of Matsukaze LED Light and Matsukaze LED Glue. *Please check the shape of the plug for your country or region, and prepare the corresponding plug or adapter before use. This product comes with a USB adapter that is compatible with Japanese outlet plugs.