Feature: 1. Full Spectrum Lighting: This LED fish tank light offers a range of color modes including red, blue, green, pink, orange, purple, and all light on, and 10 adjustable brightness levels, providing a full spectrum of light to promote the growth of aquatic plants and provide proper light for fish. 2. Convenient Timer Settings: The fish tank light with 4/8/12-hour timer support allows for easy management of lighting time, preventing energy waste from prolonged lighting, and preventing poor plant growth or water quality deterioration due to insufficient or excessive lighting. 3. Automatic Sunlight Simulation: With the ability to simulate a natural 24-hour sunlight cycle, this fish tank light helps regulate your fish\u0027s day and night cycles. You can customize the start time to 9 am, 12 pm, 3 pm, 6 pm, or 9 pm, and the light will automatically turn off at midnight, providing a seamless transition from day to night. Specification: Features: Full Spectrum Lighting: This LED fish tank light offers a range of color modes including red, blue, green, pink, orange, purple, and all light on, and 10 adjustable brightness levels, providing a full spectrum of light to promote the growth of aquatic plants and provide proper light for fish. Convenient Timer Settings: The fish tank light with 4/8/12-hour timer support allows for easy management of lighting time, preventing energy waste from prolonged lighting, and preventing poor plant growth or water quality deterioration due to insufficient or excessive lighting. Automatic Sunlight Simulation: With the ability to simulate a natural 24-hour sunlight cycle, this fish tank light helps regulate your fish's day and night cycles. You can customize the start time to 9 am, 12 pm, 3 pm, 6 pm, or 9 pm, and the light will automatically turn off at midnight, providing a seamless transition from day to night. Easy Installation and Waterproof Design: The strong suction cups make it easy to install the light securely on the aquarium glass. The IP68 waterproof rating ensures that the light is safe to use in a wet environment and protects it from water damage. Two Options: Available in two lengths (30cm with 9W or 40cm with 11W) to suit different tank sizes and lighting needs. 30cm fish tank light adopts 18pcs RGB and 36pcs white beads; while 40cm light adopts 21pcs RGB and 42pcs white beads. Specifications: Power Input: AC 100V-240V~50/60Hz Power Output: DC 12V 1A Item Length: 30cm, 40cm (Optional) 30cm Length Rated Power: 9W Light Beads: 18pcs RGB + 36pcs white 40cm Length Rated Power: 11W Light Beads: 21pcs RGB + 42pcs white Package Size: Approx. 35*7*5cm/13.78*2.75*1.96in (30cm); 42*7*5cm/16.53*2.75*1.96in (40cm) Package Weight: Approx. 340g/11.99oz (30cm); 400g/14.11oz (40cm) Package List: 1 * Fish Tank Light 2 * Suction Cups 1 * Power Adapter Package List: 1 * Fish Tank Light 2 * Suction Cups 1 * Power Adapter