Led ac/dc bulb price manufacturers

When evaluating LED AC/DC bulbs (emergency bulbs), you must prioritize the Battery Capacity (mAh) and Battery Type (Lithium-ion is standard). A high-quality bulb should offer 3 to 5 hours of emergency backup time. Additionally, check the Lumen Output in both AC and DC modes; typically, the brightness drops by 30-50% during DC (battery) mode to conserve energy. Ensure the Charging Time is between 5-8 hours for a full cycle.

For B2B procurement, compliance is non-negotiable. Ensure the supplier provides CE (LVD/EMC) and RoHS certifications for the European market, or UL/ETL listing for North America. Specifically for AC/DC bulbs, ask for UN38.3 and MSDS reports, as these are mandatory for the safe transportation of lithium batteries contained within the bulbs. Verify the IP Rating if the bulbs are intended for damp environments.

The price is primarily driven by the quality of the LED chips (e.g., San'an or Epistar) and the battery grade (Grade A vs. Grade B). While Grade B batteries are cheaper, they have a shorter cycle life and higher failure rates. To optimize costs, consider the Driver Solution (IC vs. RC); IC drivers are more expensive but offer better voltage stability and a longer lifespan (up to 25,000 hours), reducing long-term replacement costs for your clients.

These bulbs are essential for regions with unstable power grids or for safety lighting in commercial buildings. Functional requirements include an Automatic Switch-over function (detecting power failure instantly) and a Finger Touch/Hook activation feature for portable use. For high-end markets, look for Overcharge and Over-discharge protection circuits to prevent battery swelling or fire hazards.

The primary risk involves the Lithium Battery Regulations. Because these bulbs contain integrated batteries, they are classified as Dangerous Goods (UN3481). You must ensure your freight forwarder is experienced in handling Class 9 hazardous materials or that the supplier can provide a Certificate for Safe Transport of Goods. Failure to provide correct documentation can lead to customs seizures or heavy fines at the port of entry.

Always utilize the Secured Trading Service on Made-in-China.com to protect your payment until the goods are shipped. When negotiating, request a Product Inspection Report from a third party like SGS or Intertek before final payment. For bulk orders, negotiate a 30% deposit and 70% balance against the Bill of Lading (B/L) to mitigate financial risk.

LED bulbs are fragile and sensitive to moisture. Insist on 5-layer corrugated export cartons and individual color box packaging with internal plastic cradles. Since these contain batteries, ensure the packaging meets IMDG (International Maritime Dangerous Goods) standards, including proper battery warning labels on the outer master cartons to prevent mishandling during transit.

Check the HS Code (typically 8539.52) for LED lamps to determine the specific import duties in your country. For example, be aware of Anti-dumping duties or specific Section 301 tariffs if importing into the US. Ask the supplier for a Certificate of Origin (Form E or Form F) if your country has a Free Trade Agreement with China, as this can reduce or eliminate import tariffs.