ITEM NAME:5.5mm Aquarium Light Controller LED Dimmer Modulator Tank For Fish Dimming T8V8 Description: 1>. LED Dimmer Controller Modulator For Aquarium Fish Tank 2>. 100% new brand and high quality. Specifications: Color: as shown. Material: Plastic Product connector: 5.5mm DC male with lock thread. Product size: width 6.5cm . Applicable to: compatible with conventional 36V under 100w with constant pressure LED lamps. Features: 1>. Industrial-grade LED display digital tube that can be easily detected at any angle and light. 2>. 100 - level dimming to meet the requirements of various plants and pets for light.At the same time, both open and close use the gradient mode to reduce the effect on fish. 3>. With 8 sets of time brightness Settings, timer switch, simulate the different brightness switch of nature. Combine the timer and the dimmer into one. 4>. 0.05UM patch, mature sunrise and sunset procedures, all tested in the factory. Installation: Before the installation, confirm the power supply and power of the lamp, which is lower than 36V&100W. Check the interface of the lamp (5.5mm DC master lock), and connect the modulator in series between the lamp and the power supply. Step 1: Open the package and remove the dimmer. Step 2: Connect the dimmer to the LED lamp. Step 3: Plug in the power to automatically turn on the dimmer. Step 4: Set the dimmer parameter. Key function description: 1>. ON/OFF Switch the light on/off. Long press enter time to adjust the interface, by pressing + and - adjusting hours and minutes. Press "M" to exit time setting. 2>. MIN/L+ Brightness increased 3>. HOUR/L- Brightness decrease 4>. MODE Press the manual/automatic switch, long press into the timer setting. NO-1 and time cycle flicker, through + and - for the first set of time Settings. Press MODE key again, L000 flicker, through + and - for the first set of brightness Settings. Then press MODE key, NO-2 and time cycle flicker, through + and - to set the second set of time. Press MODE key .Product connector: 5.5mm DC male with lock thread. Industrial-grade LED display digital tube that can be easily detected at any angle and light. Press MODE key again, L000 flicker, through + and - for the first set of brightness Settings.