Delta Light's Magnetic Range LED Light Bar. 48" All aluminum tubular aerodynamic design minimizes weight and eliminates noise. Magnet mounting for portability and versatility, bar can be used on any and all metal surfaces. Four 50 pound pull test teflon coated magnets secure the bar. Produces 40,0000 raw lumen amplified 20% by prismatic reflective technology while consuming 175 watts with record low 14.5 AMP draw. Setting efficiency at 229 Lumens per Watt with a cost of $0.02 cents per Lumen. Making this bar the most versatile and cost effective bar on the market.