Best Lighting Products 6 Inch Commercial LED Retrofit 40 Watt 4000K Retrofit Fixture (BRK-LED40ARC6-4K) by Best Lighting Products Save Liquid error (product-badge line 32): -Infinity% $74.62 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart In Stock and Ready to Ship.