One-piece 20 Ga steel housing; 4' & 8' individual fixtures or continuous row lengths available; Six distinct distributions available, standard 80 percent indirect and 20 percent direct; Up to 142 Lumens per watt; 1 percent 0-10v Dimming is standard; Lux Enabled with integrated wireless controls; L80 calculated at 80,000 hours; 10 Day Quickship available on select types; 5 Year limited warranty