Q1: Can I use standard CR123A batteries in a 16340 flashlight?
A: Yes. UltraFire flashlights support both 16340 rechargeable and CR123A disposable batteries. However, CR123A provides lower brightness (e.g., 400 lumens vs. 700 lumens with 16340) but excels in extreme cold conditions.
Q2: How do I prevent overheating during prolonged use?
A: Limit high-brightness modes to 30-minute intervals.
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A: Within 3 years of purchase, we provide after-sales service for any quality issues, including free repairs or replacements. Additional batteries, chargers, and purchased accessories are covered by a 1-year warranty.
A: Yes. Our checkout process uses encrypted, PCI-compliant payment systems. Your personal and payment information is always safe.
Q3: Do you really offer free shipping?
A: Yes! All orders ship free worldwide, with tracking included. No hidden fees.
Q4: How long does shipping take?
A: Shipping times vary by location. If your order is shipped from a local warehouse, delivery usually takes 2–5 days. For international shipping, most orders arrive within 7–15 business days. You’ll receive a tracking number once your order is on the way.