Moderated Discussion Areas
ContinuousWave: Small Boat Electrical
Amperes and Milliamperes
|Author||Topic: Amperes and Milliamperes|
posted 01-23-2009 03:09 PM ET (US)
I have a set of Marine Linear Strip lights under my gunwales. Each light has 6 LEDs. The box said: Voltage/Draw: 40mA. I tried to Google the conversion and couldnt find a clear answer. I got the impression that I divide by 1000. If so, 40mA = .04 amps. Is that correct? Thanks
posted 01-23-2009 03:20 PM ET (US)
You are correct 1000 milliamps = 1amp
posted 01-23-2009 03:38 PM ET (US)
I was just curious because I had some underwater lights that draw .5 amps each on the same circuit. I had problems with the underater lights and OceanLED is sending me new ones. I told them that the deck lights were on the same circuit. However, a combined total of 1.08 amps is nothing on that circuit.
posted 01-23-2009 08:27 PM ET (US)
The prefix "milli" generally means 1/1000th.
posted 01-24-2009 09:57 PM ET (US)
I am an electrical engineer by trade, now retired. Nevertheless, the low current draw of LEDs never ceases to amaze me. It's like it violates some fundamental precept of conservation of energy - you do get something for (almost) nothing.
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