LED Strip Lights for Aluminum Profile

Match the strip PCB width to the channel inner width. A 5mm strip fits channels with 7mm or wider inner width; 8mm strips need 10mm+; 10mm and 12mm strips need 12-15mm channels. Always leave 1-2mm clearance so the strip sits flat without forcing the edges.

COB is the better choice when you use a frosted or opal diffuser and want a completely dot-free line. SMD works with clear covers or when the channel is mounted high enough that individual LEDs are not visible. For shallow channels, high-density SMD (120-240 LEDs/m) is a cost-effective alternative.

For permanent indoor installations, yes. The aluminum acts as a heat sink, extends strip life, and hides the wiring. For short decorative runs or temporary setups, bare strips can be used with 3M adhesive. Outdoor installations always require a sealed channel or an IP-rated strip.

Clean the channel with isopropyl alcohol, peel the 3M backing, and press the strip in from one end. Avoid touching the adhesive. For long runs, add a small amount of neutral silicone at 50cm intervals. Do not use hot glue, which can damage the PCB.

Clear covers give maximum brightness but show LED dots. Frosted covers balance output and dot hiding. Opal covers fully hide dots but reduce output by 20-30%. Choose opal for shallow channels and close viewing, frosted for standard depths, clear only for high mounting or indirect cove lighting.