Motion sensor led bulb

When sourcing these bulbs, prioritize the Sensor Type, typically PIR (Passive Infrared) for heat-based detection or Microwave (Radar) for high-sensitivity through-wall detection. Ensure the Detection Range is at least 5-8 meters and the Delay Time (how long the light stays on) is adjustable or set to a standard 30-60 seconds. Additionally, check the Luminous Efficacy, aiming for at least 90-100 lm/W to ensure energy efficiency.

For the US market, UL or ETL certification is essential for electrical safety, along with FCC compliance for electromagnetic interference. For the EU, look for CE (LVD/EMC) and RoHS certifications. If you are targeting high-end energy-saving projects, Energy Star or ErP (Energy-related Products) labels are highly recommended to prove long-term cost-efficiency.

The sensor's lifespan is often shorter than the LED chip itself. Request Switching Cycle Tests from the supplier; a high-quality bulb should withstand over 15,000 to 20,000 on/off cycles. Verify that the driver uses high-quality capacitors (e.g., Rubycon or equivalent) to prevent premature failure caused by voltage fluctuations.

For Outdoor/Security lighting, ensure the bulb has an IP44 or higher rating and a built-in Photocell (Dusk-to-Dawn sensor) so it doesn't trigger during daylight. For Indoor/Hallway use, a standard PIR sensor with a 120-degree detection angle is usually sufficient. For Warehouse or Garage settings, Microwave sensors are preferred due to their wider coverage and ability to detect motion around obstacles.

Always implement a Pre-Shipment Inspection (PSI). Use third-party agencies to conduct a Function Test on a random sample (AQL 2.5/4.0) to verify sensor sensitivity and light consistency. On Made-in-China.com, you can utilize the Secured Trading Service to ensure payment is only released after the goods pass quality verification.

Focus on the Total Cost of Ownership (TCO) rather than just the unit price. Negotiate for a 2-3 year replacement warranty instead of a small price discount. For bulk orders exceeding 5,000 units, request customized packaging and laser-printed branding at no extra cost, and ask for a 1-2% spare parts allowance to cover potential shipping damages.

LED bulbs are fragile and sensitive to moisture. Ensure the supplier uses 5-layer corrugated export cartons with individual inner boxes and EPE foam protection. Since bulbs are lightweight but voluminous, compare Sea Freight (LCL) for cost-saving versus Air Freight for urgent stock replenishment. Always clarify Incoterms (e.g., FOB vs. DDP) to understand who handles customs clearance and duties.

Verify the supplier's Business License and Audit Reports on Made-in-China.com. Look for 'Audited Suppliers' who have undergone on-site inspections by independent bodies like SGS or Bureau Veritas. Avoid using high-risk payment methods for initial orders; instead, use Escrow-based systems or Letters of Credit (L/C) for large-scale transactions.