Got it , thank you ! !<| sep |> I couldn ' t watch the entire video . I didn ' t think it was that interesting . Also the Chinaman constantly talking was very annoying . <| sep |> it will heat the cell up at higher currents and limit the current in direct drive lights . For most lights , there will be almost no difference current regulation works by putting a variable resistor in series with the LED so the regulator will just have a slightly lower resitance . It will drop out of regulation faster but there wont be much difference . It would come into play at higher currents significantly more than 1000 lumenscell but you shouldn ' t be using panny Bs for those lights anyway since they aren ' t rated for higher currents .