Metal Crown Molding : Crafted from rust-resistant aluminum alloy with excellent heat dissipation. High-transmittance PC cover optimizes light diffusion for a soft glow while protecting LED strips from dust buildup LED Ceiling Trim & Protection : Replaces bland plaster moldings by transforming harsh edges into a soft luminous halo, adding modern elegance while concealing ceiling-wall joints. Its protective design safeguards corners from damage Surface Mount : Secure with included screws, insert LED strips, and snap on the cover. It can also be used on walls or skirting boards. You can also use seam sealant/repair paste (not included) to make joints even less visible Light Strip Not Included : Our LED diffuser channel are suitable for light strip with width less than or equal to 8mm (5/16"). If you need corner connectors / custom size please contact us. Oversized lengths will be pre-cut before shipping Perfect for kitchens, bathrooms, hallways, and living areas, ensuring long-lasting decorative appeal.