[EVDL] single cell cut off

[redscooter via EV]

 i havea bunch of single cells  lfp n lion  left over, I want to run 3 
volt led lights for night light or power outage. is there some kind of 1 
cell BMS to cut off power when voltage gets to low.

they are left over yard lghts and I used  a 1s  charger for recharge.
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