Nailbender P7 Drop in,________460__turn-on____________2 SF CR123 fresh______Solarforce L2 Host, AR coated glass,
Nailbender P7 Drop in,________387__warm_____________2 SF CR123 fresh,_____Solarforce L2 Host, AR coated glass,
Nailbender P7 Drop in,________427__turn-on,___________1_18650 LI unprotected__Solarforce L2 Host, AR coated glass,
Nailbender P7 Drop in,________357__warm_____________1_18650 LI unprotected__Solarforce L2 Host, AR coated glass,
The two cr123 primaries have enough internal resistance that the voltage sags down as its drawing up over 3 amps so you don't instantly fry the LED. You can see what the real output is. the P7 would really run great at 4.4V or so with the right regulator or resistor.