Making Blue LED car light strip- Part 2
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where did you get them led lights
3 years ago 3
All Comments (19)
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@protegejustin1999 if u live in the uk maplin if u live in america go to ure local elketronics/hobby shop
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you could take this same idea and make a sign for your back window of your car like they do with neon lights
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@ghpk i use 2 Blue-ish white LED on a 9volt with no resistor. they havnt blown yet and the batteries is new.
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@protegejustin1999 I know it's been a long time since your post. Radioshack sells LEDs, but the cheapest is eBay, I bought 200 for about $10.
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дибіл
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@ghpk thanks!
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what type of resistors should i use for 5 white LEDs on a 9 volt battery?
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@somwk this all depends on the resistor... for blue LED's that require 4 volts and have to have the right resistor for how many LED's you plan on placing on the resistor...
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what type of resistors should i use for 5 white LEDs on a 9 volt battery?
01jordanfirst 1 year ago
@01jordanfirst
use "ledcalc.com" to find a resistor value.
use 2 or 3 White L.E.D. if you are going to run if off 9V and voltage drop accross 5 would be more than input volts.
Best of luck.
ghpk 1 year ago
what is the maximum number of leds a resistor should be connected to for decent operation? is it 3?
somwk 1 year ago
@somwk yes you can use 3 L.E.D. and one resistor
you can connect more L.E.D. to the supply so they'll all be in lots of 3 and each 3 will have their own resistor.
I have approx 48 in one strip.
ghpk 1 year ago
where can i get resistors ???
and what kind of resistor are you using?
herolindiii 2 years ago
resistors should be available at any shop which sells electornics parts, like radioshack and all.
use 150ohm 1/4 watt ones on a series of 3 L.E.D. they should be able to even survive 14 volts when the car is running and battery is powered extra for charging.
resistors were around 50cents for 50pcs. :-)
hope that helps.
ghpk 2 years ago