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Old 14th November 2012, 04:34 AM   #11
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Join Date: Jan 2012
Location: Bloemfontein
Thanks for the replies you all !

Power is not a problem, I 've got six pluggable modules each giving 54v /40A, so that is 40 x6 = 240A/54V.

Thanks again
Regards
Jan
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Old 14th November 2012, 05:23 AM   #12
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Join Date: Aug 2010
Robert Kesh Said

“Total wattage will be about half a watt per diode in first instance, 1/4 in second, 1/8 watt in last. (powerbob was thinking amps when he multiplied watts by volts) “

Thank you for the correction, I should have said.
Your power supply will have to be able to deliver .63W x 5LEDS = 3.15 Watts.

With a total current of.
5 LED x .012A = .06A

Also as Robert Kesh Said, it is difficult to determine LED brightness with current. First buy the LEDS you want to use then determine the resistor by using less than specified current and checking brightness with different values of resistor.
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Old 16th November 2012, 04:48 AM   #13
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Join Date: Jul 2003
Location: Dona paula, Goa
The relays draw a current. A series resistor to drop about 2 volts and an LED across this resistor will give u fool proof indication. In case the relay coil opens, the LED will not light.

Gajanan Phadte
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