<![CDATA[SoliForum - 3D Printing Community — What value of resistor do I need?]]> 2016-09-03T17:50:35Z PunBB https://www.soliforum.com/topic/15469/what-value-of-resistor-do-i-need/ <![CDATA[Re: What value of resistor do I need?]]> Tin - thanx for the help. 
Got some figgerin' to do...

Ski

]]> https://www.soliforum.com/user/3790/ 2016-09-03T17:50:35Z https://www.soliforum.com/post/126724/#p126724 <![CDATA[Re: What value of resistor do I need?]]> http://www.ohmslawcalculator.com/ohms-law-calculator

a resistance of 3.3333 ohms at 5V will draw 1.5 amps. 
the above calculator should help you.

tin

]]> https://www.soliforum.com/user/6775/ 2016-09-03T17:18:39Z https://www.soliforum.com/post/126723/#p126723 <![CDATA[What value of resistor do I need?]]> My wife has 4 artificial plant groups that have LED' intertwined in them.  They are powered by boxes with 3 AAA batteries.  Well I got tired of replacing a handful of batteries every few days or so, so I clipped the battery box and replaced it with a 5V wall wart.  I used 1 15 Ohm resister, that was in-line inside each battery box per 2 LED strings, soldered in-line.  Gets a little too hot for my liking, and 2 sets get substantially brighter. 
I would like to use one 5V 2A wall wart to drive them all.  What resistance is required to hook all 4 to 1 power supply?


TIA for any help

Ski

]]> https://www.soliforum.com/user/3790/ 2016-09-03T17:05:23Z https://www.soliforum.com/post/126720/#p126720