Don't block the air inlet and outlet, keep air convection, Don't look at the Grow lights directly while it's on. At same time, don't hang the light to plants too close, or it will damage plants. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses.Your feedback very important to us, after you get your package and you are. If you have any problem with your order / any questions please before leave any type of feedback. Thank you for shopping at our store. The item "CREE CXB3590 Dimmable LED Panel Growing Light Full Spectrum Indoor Plant Lamp" is in sale since Thursday, March 15, 2018. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Gardening Supplies\Hydroponics & Seed Starting\Grow Light Kits". The seller is "discountparts_90" and is located in Hong Kong. This item can be shipped worldwide.