Low Power USB-Powered Anti Fog Band 300mm Camera Lens Protector Prevents Condensation Heater

Specially designed for lenses of different diameters ( such as 49-95mm) and eyepieces, with multiple installation methods and a tight fit Built in over heat protections circuit, with temperature not exceeding 50 ℃, ensuring the of the equipment and lens Supports USB C / USB portpower supply ( 5V / 1-2A), compatibility with mobile power such as and camera batteries, with low power consumption It is also suitable for optically equipment such as sports cameras, UAV lenses, telescopes, microscopes, diving and more It is a practical anti fog tool for outdoor photography, astronomical observation, scientific research and investigation Using high-precised temperature control chips and uniform heating films, effectively fogging caused by temperature differences inside and outside the lens, and maintaining lens clarities