Tresco Lighting by Rev-A-Shelf introduces SWING, a 360-degree swiveling puck light with an interchangeable ball and socket design that offers versatility, says the company. It features  built-in glare eliminating Center Spot Reduction (CSR), which creates a visually appealing fixture whether switched on or off, adds the company. The low-profile lighting features European design and German engineering and comes with a Commercial grade three-year warranty.