ITEM NAME:DC 5-28V Wireless Mini WiFi Dimmable Controller For Single Strip Light LED G0F7 Description&Preview.◠Working temperature: -20 ℃ ~ 55 ℃. ◠Output channel: 1 way. ◠Product net weight: 20g. You can follow below process to chontact us. All pictures are for illustration purpose only and Colours may vary slightly.