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Welcome to uk-led.com Information
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How to calculate the correct resistor
The things you need to Know
Supply voltage = (Battery / DC power source to run the LED)
LED voltage = (Every LED has a maximum voltage)
Voltage drop = (Difference between the supply voltage & the LED voltage)
LED current = (Every LED has a maximum current)
Formula
Online calculator.
Supply voltage (12v)
Minus
LED voltage (1.7v)
Equals
Voltage drop 10.3
divided by
LED current (20ma)
Times 1000 Equals
Resistor value 515
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Important information on LED's
uk-leds light emitting diodes are very bright and therfore should never be directed at the naked eye as this could cause serious damage. Anti-static precautions must be observed when handling these devices. Never use without a current limiting resistor.
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LED's Will be sent out after payment is cleared
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How to Order
To place an order simply send an e-mail to:
Acetekrequesting the component code and quantity and we will send a quote by return, forward a cheque for the full amount made payable to:Acetek Electrical Ltd
and post it to:
Acetek Electrical Ltd
11 Woodside
Blackwater
Camberley
GU17 9JJ
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Typical Order
I would like 10 x B54k30 and 40 x W56k20
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