Material Selection
1. LED Chips: Wavelength Accuracy and Stability
Wavelength Requirements: Select 660nm (red light) and 850nm (near-infrared light) dual-wavelength LED chips to ensure penetration depth and photobiomodulation efficacy.
Brand and Lifespan: Prioritize high-efficiency chips from international brands (e.g., Osram, Cree) to guarantee over 10,000 hours of service life.
2. Thermal Management Materials: Efficient Heat Dissipation and Safety Housing Material: Use aviation-grade aluminum alloy for lightweight, high thermal conductivity, and corrosion resistance to effectively disperse heat.
Heat Dissipation Design: Incorporate finned heat sinks or built-in fans to enhance airflow efficiency.
Insulation: Add silicone insulation layers between circuits and housing to prevent electrical leakage.
3. Power Supply and Circuits: Stability and Protection Power Adapter: Adopt medical-grade power supplies compliant with IEC 60601 standards to ensure stable output and electromagnetic interference resistance.
PCB Material: Use FR-4 high-temperature-resistant circuit boards with thickened copper layers to improve conductivity and heat dissipation.
Protection Design: Ensure circuits meet IP54 dust/water resistance certification for multi-scenario usability.
4. Contact Materials: Safety and Comfort Wearable Devices (Masks/Sleeping Bags): Employ medical-grade silicone or antibacterial fabrics tested for ISO 10993 biocompatibility to avoid skin irritation.
Surface Treatment: Use rounded edges to prevent scratches and food-grade silicone seals at joints to block sweat penetration.
5. Optical Materials: Light Transmission Efficiency and Uniformity Lens Material: Opt for polycarbonate (PC) optical lenses with >90% light transmittance and UV resistance.
Light Diffusion: Integrate micro-prism structures or diffusion films to ensure even light distribution and avoid localized overheating.
6. Environmental Compliance and Certifications Eco-Friendly Materials: All plastic components must comply with RoHS and REACH standards, eliminating heavy metals and harmful chemicals.
Certifications: Key materials (e.g., LEDs, power supplies) must provide FDA, CE, and ISO 13485 certifications to meet medical device regulations.
7. Balancing Cost and Durability Lightweight Design: Use carbon fiber composites or engineering plastics (e.g., PA66) to reduce weight without compromising strength.
Environmental Testing: Subject materials to cyclic tests for high temperature (70°C), low temperature (-20°C), and humidity (95% RH) to validate long-term stability.
By implementing scientific material selection and rigorous quality control, the
red light therapy provided by EZ team
manufacturer has continuously gained market competitiveness and user trust !