High-Efficiency 4W Solar Panel Charger delivers continuous power for U-Ring Video Doorbell models 4/3/Plus/2 with weather-resistant polycrystalline silicon cells and anti-reflective coating. Precision-engineered aluminum alloy frame features corrosion-resistant anodized finish and optimized 15-degree tilt angle for maximum sunlight absorption.

Universal waterproof junction box (IP65 rated) integrates seamless plug-and-play installation with 16.4ft high-grade copper wiring for flexible panel placement. Compatible with all surveillance CCTV systems requiring 5V/2A output, eliminating dead battery scenarios in -4°F to 140°F environments.

Commercial-grade PET surface laminate withstands hail impact (25m/s wind resistance) while maintaining 23% energy conversion efficiency. Ideal for 24/7 security monitoring of gated communities, smart homes, and remote construction sites without electrical infrastructure.

Includes industrial-grade mounting brackets with stainless steel fasteners for permanent rooftop/wall fixation. Bulk purchase available for property management companies deploying large-scale security networks.