Description: 【Circular Memory Timing Function】LED growing light comes with a circular memory timing function. The timer has three modes: 8H, 12H, and 16H. Choose according to different needs. we will be able to fill the plants with light regularly, without manual guarding! When the grow light turns on, it will remember all setting modes as last time it was. (Memory function is not available when power off). 【Upgraded Design with Ring Lamp and Acrylic Stick】LED plant grows lamp with Ring Light design, one to four rings, and each ring light with 60cm/23.62inch cable and acrylic stick, you can use one ring light with one stick, and can also use all ring lights in one stick. 【Great Efficiency & Friendly Environment】 Full for Spectrum Easily turns on/off/adjusts brightness by the controller. LED grow light can offer a full for spectrum, 4000K Sunlight, Pink light, or Red-Blue light, which plants can absorb all lights it needs. 【5 Levels Brightness】5 light intensity Dimmable Switch button: Providing levels from 20%, 40%, 60%, 80%, and 100% to adjust the light intensity more freely. 【Easy To Install】Use the Acrylic stick and stick it into the soil of the flowerpot, and install the ring light on it. 【Widely Used】Widely apply to family balcony seeding/breeding, gardening, flower show, potted plants. It is especially suitable for raining, snowing, indoor for darkness, and other plant's extra light. * Promotes the growth of plants. * Improve flower quality and lengthens flowering time. Specification: Light Color: Red Blue, Sunlight, Pink for Purple Materials: Aluminium, Acrylic, PC Model: 2 Rings, 3 Rings, 4 Rings Size: Stand Height: 25cm/9.84inch, Lamp Ring: 9cm/3.5inch Working Voltage: 5V 1A LED Qty.: 2 Rings-40LEDs(20Red+20Blue/40Warm White/40Pink), 3 Rings-60LEDs(30Red+30Blue/60Warm White/60Pink), 4 Rings-80LEDs(40Red+40Blue/80Warm White/80Pink), Power Consumption: 5W for Spectrum Percent of Relative Energy: Blue 460-470 nanometers Blue light triggers growth and boosts photosynthesis for fuller and compact leaves Red 620-660 nanometers Red light enhances blooming and fruiting Warm White 4000K Sunlight mode, increase temperature and enhance photosynthesis Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 1X USB LED Ring Plant Grow Light with Acrylic Stick