100 - level dimming to meet the requirements of plants and pets for light.At the same time, both open and use the gradient mode to reduce the effect on fish.<br> Timer switch, the different brightness switch of . Combine the timer and the dimmer into one.<br> Check the interface of the lamp (5.5mm DC), and connect the in series between the lamp and the power supply.<br> Sunrise and Sunset: 24-hour aquarium light timer simulates sunrise and sunset. Adjust the light brightness freely to give your fish a regular .<br> LCD screen: Ultra-thin LCD screen with a viewing angle of up to 180 degree (horizontal and vertical) for a wider viewing area. The brightness of the display is even and soft, which does not affect your eyesight.<br> Compatibility: aquarium lamp dimmer is suitable for most of aquarium lights with inputs and outputs of 12-24 V.<br> Applicable power range: 3-100W<br> PWM frequency: 39K<br> Memory: The internal memory stores -programmed in the event of a power failure.<br> Adjustable brightness: Compatible with 5.5mm female x 2.1mm male power connectors, can also be used as a dimmer, the brightness can be adjusted from 1 - 100%.<br> Colour: Black<br> Material: Plastic<br> Size: 15x9.5x3.5cm<br> Package Contents:<br> 1 * Aquarium Lights Timer<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.