This 4W solar panel provides a simple, reliable way to keep outdoor security devices charged using sunlight. Built with a efficiency monocrystalline silicon cell, it supplies steady daytime power so your cameras, doorbells, and floodlights stay operational without a separate mains supply. Key benefits Reliable daytime power: 4W monocrystalline silicon panel delivers continuous solar energy during daylight hours to maintain battery charge for outdoor security devices. Reduces wiring and maintenance: Eliminates the need for an external power supply and frequent manual recharging, making installations more flexible and lower maintenance. Energy efficient and cost effective: Uses solar energy to cut reliance on grid power and extend device runtime. Lightweight and portable: Easy to carry and position for sun exposure, suitable for temporary or permanent installations. Simple to use: Place the panel in direct sunlight to charge and maintain the connected device. Features and specifications Solar cell type: Monocrystalline silicon Power output: 4W Function: Provides charging power for compatible outdoor security devices Installation: Lightweight design for straightforward mounting and repositioning; suitable for indoor placement in sunlit areas and for outdoor deployment Compatibility: Compatible for floodlights Pro 4 Ultra 2 Pro 3 Ultra Pro 5S Pro 3 How it solves common problems No nearby power outlet: Enables camera and floodlight placement in locations without convenient mains power. Frequent battery downtime: Keeps batteries topped up during the day to reduce interruptions in surveillance. Complicated wiring: Allows simpler installations without running power cables. Typical use scenarios Backyard security camera: Mount the panel where it receives direct sun to keep an outdoor battery camera charged for continuous daytime recording. Remote gate or driveway: Power a doorbell or motionactivated camera in an area without mains access to maintain reliable monitoring. Temporary worksite or outdoor event: Provide daytime power for a portable floodlight or surveillance camera without setting up generators or cabling. Installation tip For performance, install the panel where it receives direct sunlight for the longest portion of the day and adjust angle as needed to maximize exposure. Place the panel in sunlight to use it.