- 3 Lighting Colors: You can choose the appropriate light mode based on your plants' needs, ideal for all growth stages and different plants. - Upgraded Auto ON/OFF Timer: With circular memory function, it automatically turns on and off each day according to your setting (3h Blue / 9h Green / 12h Red). This helps ensure plants receive enough light for photosynthesis and have time to rest. Please note: If the plant light is switched off manually, the timer must be reset. - USB Powered & Wide Compatibility: The compact size and USB port make it portable and convenient for home and office use. The USB cable length is 2m / 6.56ft, sufficient for most scenarios. Suitable for indoor plants, greenhouse vegetables, potted plants, etc. - USB Adapter: A 2-hole adapter is provided for greater adaptability. Simple operation and easy installation. Practical use scenarios - Home or office desk plants: Power via a USB port or adapter and use the timer to run a consistent daily light cycle without manual adjustment. - Small greenhouse or windowsill setup: Extend light exposure for vegetables or potted plants that need supplemental lighting, using the included adapter for flexible placement. - Seed starting or indoor herb seeds: Use the 3h Blue, 9h Green, or 12h Red cycle to support different stages of growth while maintaining a tidy, low-profile lighting solution.