EugeneGreen Brand LED Plant Grow Light 12W for Greenhouse Home Hydroponics Low Heat Eco-friendly Energy Efficient 2 Year Warranty! If your order qualifies for FREE SHIPPING, please remember to choose the FREE SHIPPING option at checkout. More than just light, this bulb produces the most advantageous spectrum for plant growth; each bulb emits 630nm-660nm wavelength as red light and 460nm wavelength as blue light. These premium bulbs are constructed of a sturdy aluminum housing with a durable, hard plastic casing. 12W socket type E27; so easy to use in any common lamp or household socket. Input voltage: AC85-264V. Suitable for use with all foliage, flowering and food producing plants. Use for hydroponic growing, starting seeds and growing indoor potted plants in homes, offices, greenhouses, and for use with hydroponic grows. Minimal heat output is vented from the back so as not to burn or dry out plants. Easy returns and TWICE the warranty offered by other sellers of similar bulbs. 2 YEAR WARRANTY is the best in the industry!