Key benefits Reliable automatic control: charges your battery during daylight and turns lighting on automatically at night, then turns lights off at dawn — no manual switching required. Flexible compatibility: supports multiple battery voltages (2V, 3.7V, 4V, 11.1V, 12V) so it works with a range of small solar setups and battery types. Built for outdoor use: materials and thoughtful construction deliver dependable performance in varying environmental conditions. Easy to use and move: simple, portable design makes the unit convenient to deploy and relocate for different projects. What this product solves Eliminates the need for manual timers or daily adjustment by automatically managing charge and lighting cycles. Reduces the risk of overdischarge or missed charging by matching day/night operation to solar input and natural light. Simplifies system setup when using batteries across different voltages, avoiding the need to separate controllers for each battery type. Key features Wide voltage support: compatible with 2V, 3.7V, 4V, 11.1V, and 12V batteries. Smart automatic operation: daytime charging, nighttime lighting activation, and dawn shutdown occur without external intervention. Durable construction: built from quality materials for longevity and consistent function outdoors. Userfriendly, portable design: straightforward to place in a variety of outdoor locations and applications. Practical use scenarios Garden and pathway lighting: manage solar garden lamps that need automatic on/off operation without daily maintenance. Remote signs and marker lights: keep advertising or safety markers lit overnight while charging during the day in locations without mains power. Camping, boats, and temporary installations: provide automatic lighting and charging control for portable or seasonal setups that use small batteries. Compatibility and performance notes Designed to work with the listed battery voltages; verify your battery matches one of the supported voltages (2V, 3.7V, 4V, 11.1V, 12V) before installation. The controller handles automatic switching based on natural light/solar charge cycles; no external sensors or manual switching are required. If you need a straightforward, portable solar controller switch that supports multiple battery voltages and automates day/night operation for outdoor lighting, this unit provides a dependable, lowmaintenance solution.