This aquarium led light is DC12V/9W (12-18 inch), 5730 big leds, very brilliant, and makes the aquarium water look more sparkly and clean. Support low-to-mid light level plant growth in a fish tank with a width of 12 to 18 inches. AC100-240V/60HZ input Not recommended for use in a saltwater aquarium.Adjustable Brackets – The fish tank light includes two metal and two plastic mounting brackets that may be flexibly extended. This led fish tank light may be readily installed on most aquarium tanks, whether they have a cover or not, and whether they have rims or not.3 Light Color Modes – There are three lamp modes on this aquarium light: White LEDS, Blue+white+red LEDS, and Red+blue LEDS. Shifting the color is as simple as pressing the second button for 1 to 3 seconds on the controller. Color changes will make your one aquarium change to 3 different wonderful views                                                                              Brightness & Timing – You can vary the light brightness from 100% to 10% depending on your preferences or the light requirements of the plants, for a total of 5 levels of brightness. Furthermore, by hitting the third button 1 to 3 times on the remote controller, you may set the lighting time to 3, 6, or 12 hours.Low-profile mounting bracket fish tank lamp with aluminum alloy metal shell offers a pleasant feel and quick heat dissipation. High-quality leds are energy-efficient and can provide lights for up to 20000 hours.