MegaSack DRAW - This year's winner is user - rgwb
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Topic starter
So I'm wiring up a new front light for the bike and I'm using a switch with an LED in.
I need to use a resistor between the switch and the power input..
Resistor = (14.8v - 2.3v)/20mA = 625ohms.
I've got a 1300 ohms resistor so
a: can I use it?
b: what difference would it make?
Posted : 11/10/2016 11:51 am
what difference would it make?
None.
Futile, innit?
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Posted : 11/10/2016 11:53 am
it'll mean your led receives approx 9.6mA instead of 20mA so may be a little dim.
You could put two of your 1300R in parallel to give you 650R.
Posted : 11/10/2016 11:56 am
Futile, innit?
bravo!
Posted : 11/10/2016 12:03 pm
Topic starter
You could put two of your 1300R in parallel to give you 650R.
Like this?
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Posted : 11/10/2016 12:10 pm
This guy ^^^ has certainly done his ohmwork...
Posted : 11/10/2016 12:16 pm
[quote=stevied ]You could put two of your 1300R in parallel to give you 650R.
Like this?
yes
Posted : 11/10/2016 12:33 pm
Topic starter
Lovely, thanks 🙂
Posted : 11/10/2016 12:38 pm