Programmable Timer Controller, Programmable Timer Dimmer, Multifunctional LED Light Time Controller, DC12/24V 20A, 5 Adjustable Colors (TC420 - without WiFi) Timer Controller – for unattended operation; lights automatically turn on/off based on the timer controller's configuration. Easy to Use – set various modes from your computer and upload the program to your controller. Multiple Functions – color selection, brightness control, time control, and adjustable speed for LED lighting products. Wide Application – commonly used in LED grow lights, cultivation lamps, light box advertising, stage lighting, decorative lighting, home, and commercial lighting. High Compatibility – supports 1-5 channel output for RGBW/RGB/dual-color/monochrome LED lighting. For 1-inch thick LED screens, the voltage is DC12-24V, and the maximum total current is 20A. Please note that there may be slight size variations due to manual measurement. The product you receive may differ slightly from the image due to different monitors. Thank you for your understanding; I hope I can help you. Have a good life. Actual quantity delivered: 1 piece(s) 100% Satisfaction – Our customers are our priority. If you encounter any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sales service.