Feature: 1. [3 Color Modes] The 4 head grow lights are red blue light, single blue light and single red light, which are best for plants in all growth stages. 2. [Multifunctional] The grow light supports your 10%‑100% brightness adjustment, and the control box can also choose 3H, 9H, 12H timing function. 3. [360° Gooseneck Hose] The flexible gooseneck hose with clips can be rotated 360 degrees, which is convenient for you to adjust the angle between the grow light and the plant, easy to use. 4. [USB Powered] The 4 head full spectrum grow light is powered by USB and can be used with a home charging head (adapter not included). 5. [Widely Used] This grow light is the best gift for gardening, home balcony sowing, breeding, and potted plants. It can effectively supplement the lack of natural light and promote the growth of plants at all stages. Specification: Item Type: 4 Head Grow Lights Material: Aluminum + Electronic Components Size: Universal Hose Size: Approx. 39cm/15.4in Tube Length: Approx. 26cm/10.2in Base Width: Approx. 13cm/5.1in Gross Weight: Approx. 792g/1.7lb Spectrum: Full Spectrum Power: 40W Light Source: Blue Light + Red Light Gear: Red and Blue Light All Bright, Blue Light Single Bright, Red Light Single Bright Brightness Level: 1-10 Power Supply Mode: USB Function: Timing, Dimming, Brightness, 360° Dimming Installation Method: Clamp. Package List: 1 x 4 Head Grow Lights Note: Please allow some errors due to manual measurement.