Features:<br />This charger is specially for flashlight.<br />Basic parameters:<br /> <br />Output voltage: 4.2V<br />Output current: 300-500 mA (3.5 round hole plug)<br />Input voltage: 220-240V<br /><br />Using the method:<br />Output 2 line・ the output green light for normal standby is red when charging・ when charging the battery voltage reaches about 4.16V red light turns green・ then the charger is not entirely stop charging・ but with a small current continues to trickle charge・ the maximum voltage as of 4.21V. The charger with full protection・ so how wiring short circuit will not damage the charger.<br />State Indicates:<br />Green light for standby (trickle charging for 4.16V state)<br />Red for charging!<br />Flashing green light for over-voltage 4.21V<br />Specifications: European and US regulatory compliance<br /><br />1 x EU/US Plug charger