Ac cob strip direct

AC COB (Chip on Board) strips provide a continuous, dot-free linear lighting effect without the need for a bulky external DC transformer. Because the chips are mounted directly onto the PCB and covered by a phosphor layer, they offer higher color rendering (CRI >90) and a wider beam angle (180°). The 'Direct' AC nature allows for longer run lengths (up to 50 meters) in a single connection, significantly reducing installation complexity and wiring costs.

Since these products connect directly to 110V/220V mains, safety is paramount. Buyers must ensure the product carries CE (LVD and EMC), RoHS, and UL or ETL certifications for the North American market. Look for an IP65 or IP67 waterproof rating with high-quality silicone or PVC extrusion to prevent electric shock. Ensure the supplier uses flame-retardant materials and provides integrated over-current and surge protection in the power plug.

High-voltage AC strips generate more heat than low-voltage DC versions. To ensure a lifespan of >50,000 hours, the strip should feature a thickened double-sided copper PCB (at least 2oz or 3oz) for better heat dissipation. For high-power density models, it is recommended to install the strip within an aluminum profile to act as a heat sink, preventing lumen depreciation and color shifting over time.

Not all AC COB strips are dimmable. Buyers must confirm the use of triac-dimmable linear ICs. If dimming is required, verify compatibility with standard Lutron or Leviton wall dimmers. It is highly recommended to request a sample test with your specific control system to avoid flicker issues, which are common in low-quality AC LED drivers.

Always request a Pre-Shipment Inspection (PSI) by a third-party agency like SGS or Intertek. Specifically, instruct them to perform a Hi-Pot test (High Potential test) to check insulation integrity and a 12-hour burn-in test to identify early component failure. Sourcing through reputable platforms like Made-in-China.com allows you to select 'Audited Suppliers' who have undergone verified on-site factory inspections.

AC COB strips are heavy due to the internal copper and external casing. Negotiate for reinforced plastic reels and 5-layer corrugated export cartons to prevent pressure damage during sea freight. For large volumes, use FOB (Free On Board) terms to maintain control over shipping costs and choose a forwarder experienced in handling sensitive electronic goods to navigate customs smoothly.

Utilize Secured Trading Services offered by Made-in-China.com to ensure your payment is held in escrow until shipping documents are verified. For initial orders, a 30% deposit and 70% balance against the Bill of Lading (B/L) is standard. Avoid direct wire transfers to private bank accounts; always ensure the beneficiary name matches the company name on the Proforma Invoice.

Check the specific HS Code (typically 940542) for LED strips in your country to calculate potential anti-dumping duties or Section 301 tariffs (for US buyers). Ask the supplier to provide a Certificate of Origin (Form E or Form F) if your country has a Free Trade Agreement with China, as this can significantly reduce or exempt import duties.