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Old 29 June 2012, 10:42   #21
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Interesting article for anyone with more brain cells than a sprout

Quote:
Originally Posted by SR4 View Post
I think you will find hovercrafts have them already
And purse seiners, but I meant the casings not the actual LED. You know, so they'd match your bilge pump
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Old 29 June 2012, 12:49   #22
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Have you seen the LED rabbit vibrators,
That's just wrong, first a bloke in bed with a Mastiff and now this.
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Old 29 June 2012, 16:33   #23
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orange ?
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Old 29 June 2012, 17:31   #24
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yeah, for hovercraft - wrong forum though! anyway...boring!!!!!!!!!!!!!!!!!!
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Old 29 June 2012, 17:53   #25
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Somebody mention bilge?
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Old 29 June 2012, 21:41   #26
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Quote:
Originally Posted by kerny View Post
You wouldn't happen to work for the ISO by any chance
ISO is a fact of life. In my line of work Standards are what it is all about. I calibrate radiation protection instruments. Radiation is a wishy washy nuclear thingy that few people have a clue about. But there is an international standard for quantifying radiation dose.

I get why people think standardising nav lights is pointless... red is red green is green etc.

Standardisation just creates a level playing field, it's nothing to be annoyed or scared of... it means a blind French guy will make nav lights that show the same green as fully sighted Germans green.

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Old 30 June 2012, 04:31   #27
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Its called progress, I suppose they had this type of discussion in the pubs when electricity came around and superceeded the oil lamp beacons.
Least the oil ones worked with a flat battery.

The article seems like a waste of time and money.
In reality how badly does the EMF off LED's really affect our instruments?
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Old 30 June 2012, 05:21   #28
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Quote:
Originally Posted by chewy

In reality how badly does the EMF off LED's really affect our instruments?
It's not so much the LED's themselves as the circuitry that's used to run them. Most LED's work on a forward voltage of around 2 volts, so they need control boards to allow us to plug them in to the boats 12v system (sometimes even the wrong way round allowing for dimwits) without blowing them. It is the quality of the additional circuit that is important. Manufacturers will try to make it a cheap as possible which could be at the expense of EMF.

I fitted LED nav lights and am very pleased with them. Totally sealed, bright, low power and compact. I am all for better alternatives to filament bulbs.
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Old 30 June 2012, 05:23   #29
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Quote:
Originally Posted by chewy View Post
.
In reality how badly does the EMF off LED's really affect our instruments?
Probably not at all, but without standards you get some non-descript imports from ChinkyChonka which catch fire, screw up the GPS, interfere with the radio (how many "radio interference" threads have we had?"). Without standards it literally is a free for all, you would have no idea what you were buying. Would you buy a life jacket,fuel, radio,flares,charts, fuses,cable, oil (TCW3)...........etc that didn't comply to any standards? Lights are a critical aid to safety & navigation. All Nav lights have to comply with certain standards, not just LEDs. Filament bulb lamps went through the same process.
Standards are there to protect us, I for one can't see the problem.
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Old 30 June 2012, 05:30   #30
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Quote:
Originally Posted by Pikey Dave
Standards are there to protect us, I for one can't see the problem.
+1
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