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Can I use 3V (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel?

LED specs:
Diameter: 3mm / 0.1"
Emitting color: Red/Green/Blue/White/Yellow
Material: GaP
Forward voltage: 1.8-3.4V
Forward current: 20mA
Backward voltage: 5V
Wavelength: 460-630nm
Frequency characteristic: Low frequency

I will connect only 1 collor lets say 20 red or 20 green leds... need them to work at 70-100% of intensity... the batteries model and number is not a limit I am just searching now...and yes I can make a connection of 3*C batteries in series

Can I use 3V (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel?

LED specs:
Diameter: 3mm / 0.1"
Emitting color: Red/Green/Blue/White/Yellow
Material: GaP
Forward voltage: 1.8-3.4V
Forward current: 20mA
Backward voltage: 5V
Wavelength: 460-630nm
Frequency characteristic: Low frequency

Can I use 3V (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel?

LED specs:
Diameter: 3mm / 0.1"
Emitting color: Red/Green/Blue/White/Yellow
Material: GaP
Forward voltage: 1.8-3.4V
Forward current: 20mA
Backward voltage: 5V
Wavelength: 460-630nm
Frequency characteristic: Low frequency

I will connect only 1 collor lets say 20 red or 20 green leds... need them to work at 70-100% of intensity... the batteries model and number is not a limit I am just searching now...and yes I can make a connection of 3*C batteries in series

2 added 20 characters in body; edited tags; edited title
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choosing Choosing leds for batteries power

canCan I use 3v3V (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel?

DiameterLED specs:
Diameter: 3mm / 0.1" 
Emitting color: Red/Green/Blue/White/Yellow 
Material: GaP 
Forward voltage: 1.8-3.4V 
Forward current: 20mA 
Backward voltage: 5V 
Wavelength: 460-630nm 
Frequency characteristic: Low frequency

thanks!

choosing leds for batteries power

can I use 3v (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel

Diameter: 3mm / 0.1" Emitting color: Red/Green/Blue/White/Yellow Material: GaP Forward voltage: 1.8-3.4V Forward current: 20mA Backward voltage: 5V Wavelength: 460-630nm Frequency characteristic: Low frequency

thanks!

Choosing leds for batteries power

Can I use 3V (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel?

LED specs:
Diameter: 3mm / 0.1" 
Emitting color: Red/Green/Blue/White/Yellow 
Material: GaP 
Forward voltage: 1.8-3.4V 
Forward current: 20mA 
Backward voltage: 5V 
Wavelength: 460-630nm 
Frequency characteristic: Low frequency

1
source | link

choosing leds for batteries power

can I use 3v (2*AA or 2*C batteries in series) as power for 10/20 leds connected in parallel

Diameter: 3mm / 0.1" Emitting color: Red/Green/Blue/White/Yellow Material: GaP Forward voltage: 1.8-3.4V Forward current: 20mA Backward voltage: 5V Wavelength: 460-630nm Frequency characteristic: Low frequency

thanks!