maybe i could to a full test of the lights that i have and charging sources i have. now you have sparked my thoughts in doing a full light charging & charger test comparison review when i can get the time to run some more tests. I have done some as mentioned above by Hank. Some of the lights i have tested were the Klarus G20, Blitzwolf BL-LT5, Zanflare T1, Olight S1R, S2R, Nitecore HC60, DX80, and others. I did charge voltage & amp tests using various wall chargers, car 12 volt chargers, off-grid power banks, portable solar chargers, power banks, and others.