4,2v instead of 6v. In most lights they will run with slightly decreased output, but it might not even be too noticable. Overall a great alternative to cr123 as long as they fit (diameter).The 16650s are 3.7v instead of 3V, will that be ok?
Yes you only you one 16650.The 16650s are 3.7v instead of 3V, will that be ok?