🐟4 Modes: ①Default Mode. L: All-optical + Blue light(can change); Brightness is simulated sunrise to sunset + night effect. ②DIY Mode. L1-L6: All-optical; L7-L8:Blue. The brightness(10 kinds) and time (any time) of each stage(8 stages in total) can be set by yourself. ③Gradient Mode. The brightness time cannot be set. Cycle colors-dark blue, green, purple, light blue, yellow, red. ④All-day All-optical Mode.Can fine-tune the color temperature of RGB light, can not set the brightness and time. 🐠New Upgrade: Lamp beads IP68 waterproof, and easy to clean and wipe. The separable adapter, even if it is damaged, no need to replace the light to avoid waste. Power off memory function, after the power is restored, the local time of the light will default to 12 noon, other settings remain unchanged, and then continue to run. The extendable bending bracket can be adjusted in length and easy to install, and can be applied to various freshwater tanks. 🐡High-quality Light: the color of the fish tank light is all-optical, dark blue, green, purple, light blue, yellow, red, dark red (sign of the start color cycle mode). The light is soft, the color rendering index is close to natural light, up to 89%, protecting eyes and fish, to refuse the discomfort caused by stroboscopic for fish and viewers. Using high-quality 2835 + 5050 model lamp beads, long service life, at least 50,000 hours. And there are 10 kinds of light brightness can be adjusted.