【Upgrade Version】This fish tank light is an upgraded version, with a larger size of lamp beads and a shiny surface that is bigger and more stable. It won't hurt your eyes when you look at your fish tank. The retractable stand measures a maximum of 6 inches and fits most freshwater tanks with and without lids. The aluminum housing with grooves provides excellent water resistance and heat dissipation. 【24/7 Natural Mode】The Aquarium Light has a lighting pattern that can simulate sunrise to night. By default,the aquarium lights change to orange from 6 am to 8 am, change to white after 8 am, and then gradually change to blue from 6 pm to 10 pm, remaining off the rest of the day. You can use the 24H button + 6 time point indication to set the first running time. By default, it turns on at 6 o'clock, and the whole time period can be advanced or delayed. 【Customization Mode】You can set the light's color, time, and brightness according to your needs. There are eight color settings, white, red, green, purple, orange, cyan, and cycle. In addition, you can set your running time to 6H/10H/12H, respectively. With five brightness levels, you can adjust the brightness from 10%-100% and long press for stepless dimming. 【High-Quality Lamp Beads】The fish tank light adopts high-quality 5730+5050 type lamp beads, so the light is more stable, with no strobe. With 85% of the color rendering index is close to natural light, bringing better light perception for fish and your eyes. The lamp beads are made of glue-filled technology, with an acrylic baffle to prevent water vapor from entering, making it more waterproof and extending its service life. 【Worry-Free After Sales Service】We offer a 90-Day Money Back Guarantee and 24-hour friendly customer service. Please feel free to contact us if you have any issues with this aquarium light. We will give you a satisfactory answer as soon as possible.