The FQ 4-Inch LED Square Open Reflector Trimless Trim with Light Engine from WAC Lighting was specifically designed to provide exceptional glare control, with features like a 30° shielding angle, 45° vertical tilting, and 360° horizontal rotation, ensuring uniform and comfortable floor-to-ceiling wall illumination. This product is easy to order, install, and maintain. It operates efficiently in an environmental range from -4°F to 104°F (-20°C to 40°C) and is built with a sturdy two-piece die-cast construction. The light engine is conveniently mounted on the trim using springs, allowing for effortless replacement. It also features a 30° shielding angle design for excellent visual comfort and offers the flexibility of changing the beam angle with provided reflectors.