Brief introduction: RGBW light dimmer is a mobile application which is developed with Bluetooth 4.0. With RGBW light dimmer, you can use your phone to operate the colored light wirelessly. As long as you touch the phone, according to your corresponding click, the lights will change the color, brightness, and flicker frequency, and even DIY colored lights. RGBW light dimmer can also control multiple lights if you add the lights to the group. Application steps: Firstly, open the Bluetooth on the phone. Secondly, open the APP of RGBW, and click on the Bluetooth logo which is on the upper left corner. Thirdly, click on searching for BLEDIM light. Fourthly, click on connecting to BLEDIM light which has been searched. Fifthly, do the operation to change color, brightness, flicker frequency, DIY colored lights, and so on. Sixthly, if you want to control multiple lights at the same time, you should firstly search for and connect multiple BLEDIM lights, and click on the logo of the light group, and then click on the BLEDIM lights which you want to meanwhile control. After this operation, you can control the lights synchronously. The existing function of RGBW light dimmer: First, multicolor regulation. Second, brightness control. Third, flicker frequency regulation. Fourth, DIY colored lights. Fifth, divide the group to control multiple lights synchronously.