Item Type: Solar Lamp Controller Module Material: Glass fiber Model: 12S1 Charging Current: Up to 0.5A White Lamp Beads: About 10mA Default Use: White lamp beads Settings: Always on or flashing, the default is long on, short-circuit S1 is flashing, and the flashing frequency is about 2Hz when set to flashing mode; the overall low-power design of the circuit board, long lighting time; single-cell lithium iron 3.2V, single Both lithium-saving 3.7V and three series of NiMH can be used (need to have a built-in battery charging and discharging protection board) Function: With light control function, no photoresistor, realized by monitoring solar voltage: Charging during the day and automatically lighting at night. Circuit board size: Length: Approx. 20mm / 0.8in Width: Approx. 15mm / 0.6in Solar Panel Voltage: About 5V Solar Panel Current: Determine by yourself according to the use environment, solar charging current can not exceed 500mA Battery specifications: single-cell lithium iron, single-cell lithium battery, three strings of Ni-MH (the battery needs to have a built-in protection board to prevent overcharge and overdischarge) Battery capacity: Determine by yourself according to the use environment Battery Discharge Current: When using white light, it is about 10mA, and the discharge current cannot exceed 20mA. Flashing frequency: When set to flash, the flashing frequency is about 2Hz (other frequencies can be customized)