There are only 2 cycles on these lights, less than 3,000 hours. Solar System 550 Grow Light. The item "California Lightworks Solar System 550 LED Grow Light" is in sale since Thursday, April 15, 2021. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Grow Lighting & Accessories\Grow Light Kits".The seller is "infinitystore781" and is located in Melrose, Massachusetts. This item can be shipped to United States.