With 30 LEDs per meter, the brightness of LED bars can be improved by 90% (Max) compared to 18 LEDs per meter. The dual-panel design can effectively reduce the brightness difference between the front and the end of the light strip. This 40ft RGB LED light strip includes 360 bright LEDs. And the working voltage is 24V (A UL Listed Power Adaptor is included), with extremely Low Heat. Touchable and safe for children. The built-in sensitive mic synchronizes the light bar with your favorite music. It is the perfect decoration for festivals and parties. The strip light has a variety of mode functions, which can be freely selected through APP control. The remote control is simple to use and has a wide range of power that can meet the primary setting of the lamp. There are also mode-switching buttons on the signal receiver.