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> Self assemble led circuit? ?

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TSeddytan95
post Sep 10 2013, 07:16 PM, updated 13y ago

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346 posts

Joined: Aug 2011
Hi sifu,
I have been goggling whether hv to use parallel or series but some of the website said : never assemble led in parallel circuit
And I wonder why? Parallel isn't much more safer ? But drain more electricity right? Cost more higher...
In series how if one led burst..? But cheaper...
So I wonder whether is series better or parallel

Led more than 50...(blue and purple) guessing 25 purple and 25 blue
But calculation are messy...
Can any sifu teach me how to calculate those led things?

Led-25 b 25p
Power-battery (if cnt do perhaps ac power source? )
TSeddytan95
post Sep 12 2013, 09:15 PM

Casual
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Junior Member
346 posts

Joined: Aug 2011
QUOTE(joefbi @ Sep 11 2013, 12:11 PM)
do give LED volt spec? and also what power source you plan to use?
so sifu here can help to calculate it
info:

http://www.csgnetwork.com/ledsingresistancecalc.html

http://led.linear1.org/led.wiz

http://www.ohmslawcalculator.com/led_resistor_calculator.php

http://www.instructables.com/answers/How-d...D-power-supply/

http://www.ehow.com/how_6455710_calculate-led-power.html
*
Blue 3.5v
Purple 3.4v
Power source perhaps 9v battery? Or 12V?
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