LEDwholesalers 39" Linkable Water-Resistant Slim Aluminum LED RGB Color-Changing Wall-Washer Bar 24V, 3744RGB Slim body design blends seamlessly into buildings' facade Durable extruded aluminum chassis for long lasting use Up to 3 units may be linked together to cover larger surface areas Shock, corrosion, and water-resistant (IP65 rating) for both indoor and outdoor use Excellent for providing even, colorful accent light to billboard, architecture, and building wall