Can somebody suggest best resistor configuration for an
ultra slim pen-type light I am designing....
Giving battery typical drain values what resistor values should I use / how many hours will I approximately get
given the following Scenario:
I will be using just 1LED
- 1 3.6-4V Nichia 5mm White/Green or Blue
Given the design I am hoping to use:
3no AAA Alkalines.
- giving 4.5 volts
or 3no 1.2V AAA Nimh
- giving 3.6V
Current requirement at avg. battery voltage needs to be 20mA
Initial Current can be higher if required - heat sinking is built into the design.
Any suggestions?
Thanks.
NEWLAMPS..
PS I offer all candlepower members:
- Best-Bin* Nichia...US$1dollar eachor less!
-------Based on 25 pieces.
-------Excluding. shipping from Europe @ cost.
* Best Bins = S or T grade.
ultra slim pen-type light I am designing....
Giving battery typical drain values what resistor values should I use / how many hours will I approximately get
given the following Scenario:
I will be using just 1LED
- 1 3.6-4V Nichia 5mm White/Green or Blue
Given the design I am hoping to use:
3no AAA Alkalines.
- giving 4.5 volts
or 3no 1.2V AAA Nimh
- giving 3.6V
Current requirement at avg. battery voltage needs to be 20mA
Initial Current can be higher if required - heat sinking is built into the design.
Any suggestions?
Thanks.
NEWLAMPS..
PS I offer all candlepower members:
- Best-Bin* Nichia...US$1dollar eachor less!
-------Based on 25 pieces.
-------Excluding. shipping from Europe @ cost.
* Best Bins = S or T grade.