The FQ 4-Inch LED Square Adjustable Trimless Trim with Light Engine from WAC Lighting emphasizes glare control, incorporating a 30° shielding angle, 45° vertical tilting, and 360° horizontal rotation, ensuring uniform floor-to-ceiling wall washing. This product is user-friendly, making ordering, installation, and servicing straightforward. It operates effectively in temperatures ranging from -4°F to 104°F (-20°C to 40°C) and boasts a durable two-piece die-cast construction. The light engine is conveniently mounted on the trim with springs, enabling easy replacement. Furthermore, it allows for a vertical tilting range of 0-45° and horizontal rotation of 365° while retaining center beam alignment throughout the adjustment range.