4 MODES TO CHOOSE: 1.Only set daylight lighting:3 time options 6H/10H/12H, the colour simulates sunrise sunset (gradient orange - full spectrum white light - gradient orange). 2.Only set moonlight lighting:3 time(3H/5H/12H) + 6 brightness(10%-25%-35%-50%-75%-100%) + 7 colour(red, orange, yellow, green, cyan, blue, purple). 3.Set both daylight + moonlight lighting. 4.Manually mode. 
Clip style bracket, easy to install. Aquarium LED light can be used for different tanks(less than 0.74in thick), a variety of sizes to meet the different lengths of fish tanks. The separable adapter, even if it is damaged, no need to replace the whole light to avoid waste. Thicken aluminium to increase heat dissipation efficiency. 
The hygger aquarium light is soft, the colour rendering index is close to natural light, 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. Easy to maintain. 
hygger clip on full spectrum fish tank light can customise the time period of the daylight. Three time periods are available: 6 hours, 10 hours, and 12 hours.You can also customise the time period of the night light. Three time periods are available: 3 hours, 5 hours, and 12 hours. You can just set the daylight or moonlight mode or set them both. 
①Power:18W; ②Led QTY:90PCS (White:47PCS/BLUE:12PCS/ RED:10PCS/GREE:3PCS/ RGB:18PCS); ③CRI:82.2; ④Application(for fish tank long):48-63cm ; ⑥Power Cord: 4.9ft+2.3ft; ⑦Input Voltage:AC100-240V; ⑧Output Voltage:DC20V; ⑨Kelvin: White 6500K, Blue 455nm, Red 620nm, Green 560nm; ⑩Lumens:1843 lm.