Grow1 Green LED Bulbs allows you to work in your indoor gardens or greenhouses in the dark without disrupting your plant’s growth cycles. Perfect for greenhouses and larger commercial spaces, as well as tents and closets. Grow1 Green LED Bulbs are affordable, work great, and long lasting. Base E27 - 9W - 110V Lamp Life 20,000 hrs Warranty 1 year Up to 80% energy saving