Please don't think they are not working. Instead, it plays an very important role in the flowering and fruiting stages of plants. Coverage Area: about 10.4 x 9.8 ftThe lighting area and the height are changeable according to different plants and environments. Lighting Time setup: Vegetative Stage: 12-14 hours on; Flowering Stage: 9-12 hours on.
Fruiting Stage: 7- 8 hours on. Suggest distance above plants: 3-4.5ft. Indoor use only, not water-proof.
The working environment: -2040,45%RH90%RH. No extra ballast is needed, plug and play. Can be controlled by Timer. Extremely bright, do not look directly when the light is working. 1 x King Plus 4000W LED grow light.1 x 6ft power cord. 1 x hanging hookEasy Installation. Our products are guaranteed for a period of 2 years under normal use. (GMT+8) of Monday to Friday. All messages will be answered within 24 hours (except Public holidays in China). If you don't receive our reply, please kindly re-sent your message, we will try our best to assist you all the way. We are always here to serve you and ensure you a happy shopping experience.
The item "King Plus 4000W LED Grow Light Full Spectrum Greenhouse Double Switches US STOCK" is in sale since Saturday, July 4, 2020. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Grow Lighting & Accessories\Grow Light Kits".
The seller is "kingled-au" and is located in Los Angeles, California. This item can be shipped to United States.