shood23 Posted August 29, 2015 Share Posted August 29, 2015 Right short and sweet. I have bought the below led lights, I have to put anywhere from 12 to 18 in a model but I am having real problems powering 1 let alone 18 At the moment I haven't made any permanent connections as of yet but the way I have done it it is really struggling to make any decent light with 1 led connected and when I add another led into the circuit nothing works Like I say I need over 10 leds in the circuit I have mapped out and in the most case I would like a generous amount of light coming from each led Anyone that know where I am going wrong please help Shaun Link to comment Share on other sites More sharing options...
lasermonkey Posted August 29, 2015 Share Posted August 29, 2015 I assume you are using the required 9-14V DC to power the LEDs? As long as you have the LEDs the correct way round and wired in parallel, there's no reason at all they shouldn't work. They don't draw much current, so a PP3 should easily be sufficient. Can you explain what you have done so far? Cheers, Mark. Link to comment Share on other sites More sharing options...
shood23 Posted August 29, 2015 Author Share Posted August 29, 2015 Thanks for the quick reply Mike. Just take into consideration I am a complete newbie at lighting so if there is anything dramatically wring that's the reason This is the test setup up I have done just to check it out 1. Worked but very dim 2. Didn't work full stop So I cut the heat shrink off of one and this is the resistor that I presume is connected to all Again this is my first lighting project and in the end things will be soldered but I want them to work first before making a more permanent connection So if you can see where I'm going wrong or if I need to add more or take anything away then let me know Cheers Shaun Link to comment Share on other sites More sharing options...
davepb Posted August 29, 2015 Share Posted August 29, 2015 You have them connected in series! Connect them so that they look like the rungs of a ladder, with all the positives along one side, and the negatives on the other side (if that makes sense. The resistor can go in series on either side, but not in parallel!! Make certain the positive is connected to positive side of battery - should then work Link to comment Share on other sites More sharing options...
shood23 Posted August 29, 2015 Author Share Posted August 29, 2015 I've had a it of a blonde moment lol I bought a new battery just to make sure and using the ladder as suggested they now work a lot better and much brighter It's always the component that you never give a second thought that holds you up, mental top tip always check the batteries Shaun Link to comment Share on other sites More sharing options...
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