Weather- Durability: Rated IP65 waterproof, the robust ETFE-laminated casing of this 5W solar panel against rain, snow, and harsh weather, guaranteeing long-lasting performance. Enhanced Solar Efficiency: Crafted from high-grade monocrystalline silicon, this solar charger boasts superior conversion efficiency, ensuring your Ring doorbell remains powered with eco-friendly . Ring Doorbell Compatibility: Specifically designed for Ring Video Doorbells 2, 3/3+, and 4, this solar panel ensures your doorbell is always charged. Note: Not suitable for doorbells without rechargeable batteries. Simplified Installation Process: Equipped with a 360° adjustable wall mount and a cable, this solar panel can be easily installed in optimal sunlight locations, enhancing charging efficiency., Weight: 0.85539357656 Pounds, Manufacturer: NONDK