Features: This LED Dimmer enables smooth dimming of the widest range of LEDs with high consistency, high compatibility and changeable dimming curve. Allow to optimize the dim range of your bulb and prevent interference with other dimmers in the home. Easy to use, replace the existing switch or dimmer in as little as 15 minutes. Suitable for MR16 LED spotlight, LED recessed light, LED strip light, etc. What you will receive: 1x LED Dimmer, 1x Remote control(Include 1* 12V27A battery), 1x User Manual. Specifications: Voltage: DC 12V~24V Remote control frequency: 433Mhz Remote control power supply: 1* 12V27A battery(Included) Support for adjusting monochrome LED lights Working temperature: -25°C to 60°C Dimension: approx. L103 x W46 x H32 mm Operation method: Long press the up arrow button to increase brightness Long press the down arrow button to decrease brightness Click on the on/off button Package Includes: 1x LED Dimmer 1x Remote control(Include 1* 12V27A battery) 1x User Manual Note: When we shipped, the remote control and dimmer were already paired