Proper orientation is key. Our H7 bulbs feature a 360° adjustable locker ring. For most reflector housings, the LED chips should face 3 o'clock and 9 o'clock (horizontal) to achieve the best cut-off line and prevent blinding oncoming traffic.

Yes. We’ve optimized our H7 design with a miniature heat sink. The total length is strictly controlled to ensure that even in tight headlight assemblies, the original dust cover can be closed tightly to prevent moisture and dust from entering.

Thanks to our strict 5-step QC process and 4-hour burn-in test, our actual defect rate is less than 0.3%. For B2B clients, this means higher customer satisfaction and significantly lower return costs.

Yes, we highly recommend sample testing. We can provide a Sample Kit that includes our top-selling series (e.g., M35, V8, L19). For serious wholesale inquiries, sample fees can be credited toward your first bulk order.

Standard is 6000K-6500K (Cool White). However, for specific markets (like high-fog or rainy regions), we can customize 3000K (Golden Yellow) or 4300K (Warm White) for bulk orders of 1000 sets or more.