We offer the best Quality & Value SF-4000 U. Using a mixture of 5000k & 3000k Official 100% Original Samsung LM301B HIGH QUALITY diodes and 660nm, 760nm (Red) Osram Led's the SF4000 Full Spectrum LED Grow Light is engineered to produce the best possible results in your fruit, vegetables & flowers. These high-powered Led Grow lights are similar to spider farmer lights, using the same spec diodes and drivers but cost a fraction of the price. Each light contains four x Sf1000 boards that contain 219 Diodes on each board totalling 872 diodes on a low profile heat sink with two Meanwell ELG drivers that deliver 450 watts of power this will replace a standard 600w HPS light in a 4ft x 4ft area. Using the same Meanwell drivers and Samsung diodes, they also feature a chainable dimmer, which enables a long-term connection of up to 12 units being dimmed by just one dimmer.The condition is "New sealed". If you would like to know more about LED Grow Lighting just message us. We will do our best to help. The item "2 x LED GROW LIGHT SF4000 Samsung LM301B similar spider farmer replace 600w HPS" is in sale since Friday, July 9, 2021. This item is in the category "Garden & Patio\Hydroponics\Grow Lighting & Accessories\Grow Light Kits". The seller is "bruler1979_4" and is located in Rochdale. This item can be shipped to United Kingdom.