Usb With Timer Dimmable Full Spectrum 3 Head Bulb Led Grow Light. SPECIFICATIONS: Material:aluminium Life Time: 50000 Hours Suitable Place: Horticultural Seedling/greenhouse Vegetable/indoor Plant Light Supplement Full Spectrum: 30W LED Grow Light 3 Timer Modes - 3 Hours, 6 Hours and 12 Hours 5 Dimmable Luminance Modes 360 Flexible Goose Necks Make It Able to Adjust Any Direction or the Lighting Area With an Adjustable Clip Which Max to 2.5 Inches for You to Fix It on Most Place Stably. LED Chips:60leds Irradiation Area :3-8 Square Work Wide Voltage: DC 5V. Indoor Use Only, Not Water-proof. Recommended Height to Plant: 12"-50" According to Different Growing Stages . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.