What he said makes sense.what you said does not.it is in fact high amps where sparks occur and wires melt.
What i always wonder is if we have 5 x 36v cobs wired in series on a 1 amp load does the ideal or bjb holder see the entire current or just what the cobs are using like in this case 36v or 35.5 whatever the cob is seeing? I just assumed someone put a volt meter in line between the 2 cobs in series to check this but maybe not? Seems like alot of people here are just guessing at what is actually running through the holders ?
in that case, there is 36v on every cob/holder separate.
Current spark = yellow ,voltage spark = blue , you will never have yellow spark at already closed circuit, you can only have blue because it is high voltage that allows you have long sparks.
to RAHZ : in your case you have to have exposed wire and exposed uncoated/ ungalvanised heatsink and high voltage over 1000V, than you can have about 1mm long spark between pure metals. You have rubber insolation on wires and i supose BJB dont have any exposed metal, everything should by covered by plastic except COB contacts. There is some rule how long can the spark be. I thing that it is something like 10 000V = 1cm long spark that can spontaneously occur between conductive material.
Insolation like plastic and rubber can exceed voltage up to 1000V or more. Coated coils have coating with thickness 0,001mm or less and can outstand that coltage too.
quote: so it can also handle 450A / 1V
and also 0.001A / 450000V
this is really bullshit example, we are thinking about 20v-400v here.
Does have anyone close-up photo of BJB?
