Usage Tips:1. The LCD screen interface is rich in content, the real-time status is clear, and the screen brightness is uniform and smooth. 2. Select safe materials, long service life, safe and reliable. 3. Fine structure and easy operation. 4. Universal , suitable for all kinds of fish tank lights with 12-24V input and output. 5. A variety of modes can restore sunrise and sunset, multi-level dimming, power off memory. Model:T1 Adaptation voltage:12-24V Applicable power range: 3-100W Adaptation type:single-channel lamps Functions: 1. Timing 2. 4 kinds of sunrise and sunset modes 3. 10 levels of brightness adjustment Weight:about 0.11KG Size:15x9x3 cm Colour:Black Material:Plastic Package Contents: 1 * Aquarium Lights Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.