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Old 25 October 2007, 16:59   #31
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Use of red in any other way would definately contravene SOLAS
oh yeah? the fairly new, halmatic, coded, MCA coastguard rib not a million miles away from here by sea has red led deck lights. Much more dangerous is the use of intense white spotlights whilst underway esp when they are mounted near the red/green nav lights. I had one approaching me last winter whilst exiting a dutch port. Ruined everyones nightvision, all we could see was this white light in the snow flurries. It was not until he drew level that I saw his red as I got past the beam of the white spot above it. The worrying thing was we needed to turn across the track he was on and it was suggested by some that we were looking at the sternlight of a vessel. However being of a nervous disposition we slowed down and held our course to let things develop a bit longer.
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Old 26 October 2007, 10:50   #32
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Some of those blue lights kids fit on their cars would be cool if you could get them under the hull and shining out into the water.
I did see a ~8m rib (it came out the side of a silly size "yacht" in the med) with under hull floodlights - was well handy for the helm as he entered a relatively rock strewn cove to bring the owners ashore to the restaurant.

At first I thought it was a brilliant idea for coming ashore in the dark on a strrange beach, but he didn't switch them off as he motored back - it was the weirdest lights show as the floods popped in & out the top of the waves and the light danced through the spray, air and straight down into the sea. Not SOLAS approved lighting, but you sure knew where he was!

So, anyone fancy cutting a couple of holes for Maplin IP56 floods under their hull?
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Old 26 October 2007, 13:20   #33
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get a nice night with phosphorescence and nature will provide the blue lights dancing along the hull for you. Magical when it happens.
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Old 27 October 2007, 19:21   #34
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Whilst in Maplins today buying radio connectors, I thought I'd purchase some LEDs.

I bought 4 LEDs of different types 2 in red and two in blue. Whilst having a play with these tonight I have discovered how hot these little diodes get. Is this a factor to take into consideration when mounting them?
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Old 27 October 2007, 19:54   #35
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What voltage were you running them at? They shouldn't get hot.
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Old 27 October 2007, 22:01   #36
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9V the guy in the shop said that they ran at this voltage and that I would need some resistors in line to lower the boat voltage from 12v to 9v, so he sold me some of these too.
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Old 27 October 2007, 23:24   #37
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I wasn't going overboard with lights, just that I do fish and sometimes at night too in the summer. What I need is to back light areas that people are likely to be whilst at Anchor or Pontoon at night. The bow area and stern area's are the most remote area's and need good but unintrusive lighting. I need something I can use whilst fishing too. To help me whilst hooking the bait and fiddling around, again without being in ya face.

I hadn't even looked at Spotlights yet, but will probably go for a movable one that plugs in somewhere.
i went for two halogen small driving lights from halfords, they are around 3 inchs across i think they were around 15-20 quid at most, the main idea was to have them above the engine on the aframe but underneath so they could be swung downward to light up the engine in the event of an engine/prop prob at night, they are also great for lighting up the boat at night but also when travelling at night they light up buoys etc.

have proved to be great and well worth the effort of fitting

if i was doing another build i would definately go for the led deck lights to light up the floor area on other occassions as that would be really helpful at times, i suspect that could be a job for the winter
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Old 28 October 2007, 05:55   #38
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9V the guy in the shop said that they ran at this voltage and that I would need some resistors in line to lower the boat voltage from 12v to 9v, so he sold me some of these too.

Are you sure he's given you the right resistors?

A suggestion:- go to RS online and have a look at these:-

IP67 rated 12v LEDs

A bit pricey but all you need to do is put them in and wire them up.
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Old 28 October 2007, 06:52   #39
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This one is a more focused/spotlight beam.

http://www.maplin.co.uk/module.aspx?...&doy=28m10#PDF

and this one is a more of a flood light type beam

http://www.maplin.co.uk/module.aspx?...doy=28m10#spec

If yu can make more sense of the specs than me then you should be able to understand what voltage they are.

The reverse voltage maximum is 5v.

I've wired up two of these in series over a 9v battery and there's no visible change to the intesity of the light, that at least shows that they'll run at 4.5v's a piece. They are much cooler than they were too.
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Old 28 October 2007, 06:57   #40
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Whilst in Maplins today buying radio connectors, I thought I'd purchase some LEDs.

I bought 4 LEDs of different types 2 in red and two in blue. Whilst having a play with these tonight I have discovered how hot these little diodes get. Is this a factor to take into consideration when mounting them?
Shouldn't get hot at all. Not sure of the current requirements off the top of my head but its very little. Thats the beauty of LEDs and why they are used for such things as indicators on car alarms. They shouldn't flatten your car battery.
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