Hi everyone, this is our CLONE LED light 18W/36W, the L-series combines high intensity and durability with a chain that allows：*Up to 30/60 luminaires can be connected to a single mains input. *The LED driver is internal, which means fewer cables and easy installation. *The L-series is ideal for the application with high light intensity *Recommended to be used in growing tents/indoor grow *Fresh produce all year around with no disease, climate, or pesticide worries. www.west-land.com