Sun System Grow Lights - Econo Wing - Single End | Metal Halide / HPS | Reflector - For Hydroponic and Greenhouse Plant Use Made with highly reflective textured aluminum and a heavy duty galvanized steel mounting bracket Corners are rounded  no sharp corners unlike competitive gull-wing type reflectors Reflector dimensions: 21-1/4 in long x 15 in wide x 4-1/2 in high