Submersible LED Aquarium Light,Fish Tank Light with Timer Auto On/Off, White & Blue LED Light bar Stick for Fish Tank, 16 Light Modes Dimmable,4W,7.5 Inch create a wonderful aquascape. It is the best choice for main light, accent light,or replacement aquarium hood light. GOOD FOR PLANT & FISH: Ultra-bright 7000-7500k White LEDs and rich 460nm blue light are sufficient to grow your plant thriving.It also lights your fish in a way that really changes their color to stand out. BUILT-IN TIMER: The fish tank light has built-in timer and 3 timing durations, it will come on and go off at the same time every day and light up for 6 hours,10 hours or 12 hours.No need to buy extra timer. BUILT-IN DIMMER: There are 18 super bright leds in the 7.5 inch fish tank light, if you have over bright issues, you can adjust the brightness with the built-in dimmer for each white light and blue light. WATERPROOF AND EASY TO MOUNT: It is submersible and with moveable suction cups, mount the light on tank bottom or at the top, attach it into the tank any angle or even outside the tank.