LED voltage calculator
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ABCDEFGHIJKLMNOPQ
1
Power adapter
2
12
V (source voltage)
3
12
V (Voltage after first "main" resistor - for now there is none)
4
10
V (voltage after resistor in each of parallel circuits)
5
Full circuit
Un-full circuit
6
# of LEDsColorLED Voltage (V)LED Current (mA)Total Voltage (V)# of LEDs# of circuitsCurrent (mA)Resistor Voltage (V)Resistor (Ohm)Resistor Wattage (Watts)# of LEDsCurrent (mA)Resistor Voltage (V)Resistor (Ohm)Resistor Wattage (Watts)
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20blue3.32066.036602.01050.122402.02700.08
8
13red2.22028.643802.01600.161202.04900.04
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6yellow2.22013.241802.01600.162402.03800.08
10
5green2.52012.541802.01000.161202.04750.04
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44760120
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Total current (mA):
13
880
14
15
G12blue
16
o6red
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o6yellow
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g8blue
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l5green
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e7red
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22
23
24
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Sources:
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https://romankharkovski.com
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https://www.nutsvolts.com/magazine/article/calculating_current
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https://learn.sparkfun.com/tutorials/resistors#current-limiting
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https://www.electricaltechnology.org/2013/08/how-to-calculate-value-of-resistor-for-LED-circuits.html
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