Recent content by lukeledinstal

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    LED and Resistor Circuit WiringWhich resistors should i use?

    thats great thanks very much for the help guys!
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    LED and Resistor Circuit WiringWhich resistors should i use?

    ok i think this will work so i need 3 1.2volt aa batteries and a 2ohm resistor put in just after the switch in series, with all the LED's in parrallel?
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    LED and Resistor Circuit WiringWhich resistors should i use?

    thanks, i have looked into led strips but they work out far more expensive than if i wire it myself. Not sure what you mean by 'I wouldn't want to waste energy in a current limiting resistor, although you could put a small limiting resistor just in case of a short if you wanted.' what sort of...
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    LED and Resistor Circuit WiringWhich resistors should i use?

    ok it is for an instaltion i am doing involving a semi transparent tunnel 1.5m long which people will crawl through. i want to light the tunnel along the bottom edges either side (hence 2 strips of 10 led's) it dosent need to be extremely bright as it is meant to be somewhat scary. i thnk it...
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    LED and Resistor Circuit WiringWhich resistors should i use?

    I need to make a 'strip' with 10 leds about 15cm apart in a line. So if i use 3 x 1.2V rechargeable (NiCad/NiMh) batteries and wire all the LED's in parallel i shouldn't need resistors? I am not sure what you mean about 'arrange the LEDs in groups so that they are as close to the supply...
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    LED and Resistor Circuit WiringWhich resistors should i use?

    So the Voltage Across the resistor would be 5.5V, and the current through the resistor should be the same as the LED - 30mA. ohms law then says the resistance should be 5.5/0.030 = 183.3 ohms. so with 10x LEDs and a 9V battery i would have 10x 180ohm resistors, one between each LED all in...
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    LED and Resistor Circuit WiringWhich resistors should i use?

    Basically I am trying to make a circuit with 10 white LED's and any number of 9v or similar batteries. Iv heard i need 1 resistor per led but not sure whether to use 330ohm or 470ohm resistors (or different). The LED's are 3.2 - 3.8V and 30mA.
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    LED and Resistor Circuit WiringWhich resistors should i use?

    i have 20 ultrabright white LED's and i want to get a good brightness out of them. they will be in 2 circuits of 10 leds each. i think i need 1 resistor per led but I am not sure which resistors to use. The LED's are 3.2 - 3.8V and 30mA. i plan to use 9v batteries in whatever combination is best...
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