The FQ 4-Inch LED Round Adjustable Trimless Trim with Light Engine from WAC Lighting boasts outstanding glare control, featuring a 30° shielding capability, a vertical tilting range of 45°, and a versatile 360° horizontal rotation, ensuring consistent and uniform wall washing from floor to ceiling. This user-friendly product makes it easy to order, install, and maintain. It operates reliably within a temperature range of -4°F to 104°F (-20°C to 40°C), boasts a two-piece die-cast construction, and facilitates easy light engine replacement with springs mounted on the trim. It also offers vertical tilting adjustment from 0 to 45°, horizontal rotation of 365°, and maintains center beam alignment throughout the adjustment range. Additionally, these luminaires allow for field-changeable beam angles and can accommodate various accessories, such as reflectors, to suit specific lighting needs.