Collection: COB LED Strip Lights

Traditional SMD strip lights mount individual LED chips at spaced intervals along the board, creating visible bright points (dots) separated by darker gaps. COB technology packs hundreds of micro-LED chips so densely that the entire surface lights up as one continuous phosphorescent line, with no distinguishable individual points — hence "dotless." This makes COB strips suitable for direct-view applications where SMD strips would show an undesirable spotted pattern.

COB strips produce a dotless output even without a diffuser, but an aluminum channel is still recommended for most installations. The channel provides physical protection, improves heat dissipation (which directly affects lifespan), and gives the installation a clean, finished edge. For cove and architectural applications, a shallow channel with a clear or frosted lens is the professional standard.

Not necessarily brighter, but more uniformly bright. COB strips distribute lumens evenly across the entire strip surface, whereas SMD strips concentrate light at each chip position. A high-density COB strip can match or exceed the lumen output of an SMD strip, but its advantage is uniformity rather than peak brightness. For maximum raw lumen output, high-density SMD strips may edge ahead; for smooth, even illumination, COB wins.

CRI (Color Rendering Index) measures how accurately a light source reveals the true colors of objects compared to natural sunlight. High-CRI COB strips (90+ CRI) are essential for applications like retail displays, kitchen task lighting, and art galleries where color accuracy matters. A low-CRI strip can make colors appear washed out or shifted even if the light looks white to the naked eye.

Yes, but only IP-rated COB strips. Standard COB strips are rated IP20 (indoor dry use only). For outdoor or wet-area applications, look for IP65 or IP67-rated COB strips with a silicone sleeve or waterproof encapsulation. These maintain the dotless aesthetic while providing protection against moisture, dust, and weather exposure.

COB LED strip lights are most commonly available in 12V and 24V. 24V is generally preferred for longer runs because it reduces voltage drop and maintains brightness consistency across the strip. 12V COB strips are well-suited for shorter accent and under-cabinet runs. 120V COB options are also available for commercial applications requiring very long continuous runs without a separate driver.

Maximum run length varies by voltage and wattage per foot. As a general rule, 12V COB strips should not exceed 16–20 feet per run, while 24V COB strips can extend to 32–40 feet before noticeable voltage drop. For longer installations like full-room cove lighting, use power injection at both ends or split the run into parallel segments fed from the same driver.

Yes — virtually all COB LED strip lights support PWM dimming when paired with a compatible low-voltage dimmer or dimmable driver. COB strips dim very smoothly with minimal flicker due to their high chip density, making them an excellent choice for hospitality and residential spaces where smooth, flicker-free dimming is a priority.

COB is one of the top choices for cove lighting because its dotless output eliminates the scalloped shadow pattern that segmented SMD strips can project onto cove walls and ceilings. Pair a 24V high-density COB strip in a warm white (2700K–3000K) with an aluminum channel and frosted diffuser for the smoothest, most professional cove result. High-CRI variants are especially popular in hospitality and residential luxury applications.

COB LED strip lights typically cost more per foot than standard SMD strips due to the higher chip density and more complex manufacturing process. However, the premium is often offset by savings on diffusers and channels — since COB strips don't require a diffuser to look polished. For applications where the strip is visible or near reflective surfaces, COB is the higher-value choice overall.