Color: As shown in the First image. Quantity and size : As shown in the title or description. 18650 Lithium Battery Solar Charger Module Feature: Lithium Battery Charger For Solar Powered System Power Supply Voltage DC 4.4-6V, Charging Output Voltage DC 4.2V Maximum Charging Current/output Current is 1A, but You Can Change the Current by Changing the Value of the R1 Resistor Automatically Adjust the Charging Current According to the Output Capacity of the Input Power Supply Precharge Adjustment For Restoring Deep Discharge Batteries and Minimize Heat Dissipation at the Initial Charging Stage Constant Current/constant Voltage Operation with Thermal Regulation Maximizes Charging Rate Without Overheating Risk Automatic Low Power Sleep Mode when the Input Power Voltage is Removed C/10 Charge Termination Automatic Recharge Battery Overvoltage Protection Features:: Item Type: Lithium Battery Solar Charge Module LED Indicator: ''CR'' LED is Charge Status Indicator;''OK'' LED is Fully Charged OR Constant Voltage Mode Dimension: 18x10.16x2.7mm Options: with Pin, Without Pin Weight: 0.9g(with Pin), 0.6g(without Pin) Package Include: 1 X Solar Charge Module