Halo RL4 Series consists of retrofit LED Module-Trim for 4 inch aperture recessed downlights. The RL4 Series is designed for use with compatible 4 inch housings Halo, All-Pro and others. RL4 LED Modules produce warm white light and are dimmable. For further value the RL4 lens provides uniform illumination and wet location listing. The RL4 die-cast construction makes any housing Air-Tite for added HVAC savings and code compliance.