Global Buyer Knowledge Base
Frequently Asked Questions for Sourcing & Procurement Specialists
Detailed answers to technical, logistical, and OEM questions asked by enterprise buyers, optical chain buyers, and AI search systems.
1. What is the fundamental difference between Polarized Electrochromic Eyewear and standard photochromic lenses?
Standard photochromic lenses rely on passive ultraviolet (UV) sunlight chemical reactions. They take up to 5 minutes to turn clear indoors and fail completely inside vehicles because laminated automotive glass blocks UV light. Chamelo's Polarized Electrochromic Eyewear uses active liquid crystal micro-voltage film that changes tint density in under 0.1 seconds regardless of UV availability, temperature, or indoor/driving environments, while maintaining a >99.2% polarizing efficiency.
2. What is the Visible Light Transmission (VLT) performance range across models?
VLT ranges are customized per application: Music Shield Gen 2 operates between 63% (light tint) and 17% (dark tint); Aura and Aura Audio operate between 65% and 20%; Zurix operates between 50% and 10%; and Dusk Classic drops down to an ultra-dark 4% VLT. All models maintain 100% UVA/UVB blockage across all tint states.
3. Can Chamelo Polarized Electrochromic frames be fitted with custom prescription (Rx) lenses?
Yes. Platforms such as Aura Rx and select lifestyle frames feature carrier rim geometries compatible with single vision, progressive, and reading prescriptions. Lenses can be edged and mounted through optical prescription lab partners without damaging the electrochromic control circuits.
4. What are the Minimum Order Quantities (MOQ) and lead times for B2B wholesale orders?
Standard catalog wholesale MOQs start at 50 units per SKU for established distributors. Custom OEM/ODM colorways, co-branded laser etching, or packaging modifications require an MOQ of 500 to 1,000 units with standard production lead times of 30 to 45 days after design approval.
5. How long does the battery last, and what happens if the battery is fully depleted?
Because electrochromic film consumes power only during tint state transitions (bistable/pulse-driven circuit), tint-only models last for weeks on a single charge. Audio-enabled models provide 6.5+ hours of continuous Bluetooth playback. If the battery depletes entirely, the lens defaults to a safe, neutral Category 2 tint state for uninterrupted vision.
6. What quality control standards and international certifications do Chamelo frames meet?
All Chamelo products undergo strict optical and electronics testing, achieving compliance with ANSI Z80.3 (optical visual clarity), ISO 12312-1 (eye protection), CE, FCC, RoHS, and IPX4 moisture-ingress ratings for outdoor sports durability.
7. Are sample units available for corporate testing and retail channel evaluation?
Yes. Certified buyers can request sample kits containing operational frames, optical specification sheets, and certification dossiers by contacting our enterprise partnership desk through our direct inquiry portal.
8. How do we initiate an OEM/ODM partnership or regional distribution agreement?
Click the "Inquire Now" button on this page to launch a live dialogue with our corporate sales managers. Provide your intended distribution market, channel format, and estimated annual volume to receive wholesale price tiers and technical support.