Feature:1. The control board has over-charge and over-discharge protection, which has stable performance2. With light control / time control / normally open three modes adjustable3. Using PWM charging mode, safe and reliable to operate4. This is 3.7V / 7.4V / 11.1V 3A solar light controller which easy to install and replace5. Compact appearance and great processing can make sure the durability and stability of the boardSpecification:Item Type: Solar Lamp Panel Circuit BoardModel: 3311Material: FiberglassCharging Mode: PWMRated Current: 3AInput Withstand Voltage: 3S≤30V; 5S≤50VOverload Short-circuit Protection: 1.5 times the rated current is delayed for 5 minutes to turn off, and automatic detection and recovery after 5 minutes; 3 times the rated current, the short-circuit protection is turned off Package List:1 x Module1 x User Manual