Features: OOTDTY 1.Combine the timer and the dimmer into 2.With 8 sets of for time brightness Settings, timer simulate the different brightness of nature. 3.Simulate & sunset to provide a natural day and night cycle for your fish. 4.Automatically your aquarium lamps on and off as you set. 5.Can also be used as a dimmer, the brightness can be adjusted from 0~. Cautions: 1.Use only the power supply from accessory with 100-240V input; for DC 5V-30V. 2.This device is NOT waterproof. Specification: Material: ABS&Electronic Components Color: Black Product Size: 6.8cmx 6cm x1.5cm Wide input: DC5V-30V and Sunset models: 90 Minutes 12/24 Hours Maximum power 150W Quantity: 1Pclight and other accessories in the picture are not included! Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includeswithout retail package: 1Pc Light Dimmer Controller