Our 60 watt LED Rail’s are made with lightweight aluminum and feature passive cooling for excellent thermal management. Great for use in a layered rack system. Vertical or horizontal mount for intra-canopy plant growth. 906423 has 6,500?K LED that is great for propagation and continue as supplemental light through veg cycle of plant growth. Includes industry first 7 ft Convertible Smart Volt? Power Cord featuring, 120 and 240 volt plugs.