【Adjust Angle of The Light】 Easily screw on these aquarium lights using the adjustable clip that will fit onto all standard tanks. The metal neck of the lights can be turned around 360 degrees. 【Low Temperature, Energy-saving & Low Radiation】 They can last up to 10,000 hours of use. They will not affect the temperature of your tank water in any way. These bright lights will not heat up. 【Very Bright Two Color】 LED lights are much brighter than regular incandescent lights. The rectangular shaped headlamp contains 24 LED bulbs - 18 white and 6 blue. 【Illuminate Your Aquarium with LED Lights】 Your java moss, marimos, banana plants, snails , critters, betta fish and other fish will thrive under these powerful Led lights. 【Not Too Bright Or Too Dim】 This aquarium night lighting unit is neither too bright nor too dim, but have the perfect brightness for illuminating your betta bowls or small fish tanks.