Onboard Lighting Question

Divemaster1

Divemaster1

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Simple really... Need to replace lighting in one of the cabins. Two rectangular ceiling lights (about 6" x 3" ).

Which company is the best supplier ?

Nothing fancy... straight forward fitting and need footprint of similar size, but seem to struggle finding a rectangular one ...

Suggestions welcome ... but No.... I do not need underwater lighting, multi-colour options, recessed spots or dimmer switches . :)
 
Alf,
bought (after someone's suggestion sorry don't remember who!) a few bits from coastalrides.co.uk
Among them were two cantalupi lights with two halogen small bulbs each around 200mm dia for dunno less than 20quid. I know they are larger than what you probably have, but check their online catalogue, there were some smaller rectangular ones there as well.

cheers

V.
 
Divemaster1 said:
Simple really... Need to replace lighting in one of the cabins. Two rectangular ceiling lights (about 6" x 3" ).

Which company is the best supplier ?

Nothing fancy... straight forward fitting and need footprint of similar size, but seem to struggle finding a rectangular one ...

Suggestions welcome ... but No.... I do not need underwater lighting, multi-colour options, recessed spots or dimmer switches . :)
Click to expand...

You could consider using small LED tube fittings. Good quality 300mm LED 7W tubes emit more light than 3 x 8W equivalent sized fluorescent tubes. These also last up to 10 times longer than a fluorescent tube.

Regards
 
Adrian Jones said:
You could consider using small LED tube fittings. Good quality 300mm LED 7W tubes emit more light than 3 x 8W equivalent sized fluorescent tubes. These also last up to 10 times longer than a fluorescent tube.



Regards
Click to expand...
Are you on drugs? Or you have an LED that deliver 300 lumens per watt? If you have I'd like to buy some, so would most of the professional led lighting world.

This is why LEDs get a bad name through ridiculous claims like this. I am
Sure your product is 'adequate' but to make such a claim v fluorescent is down right misleading.
 
wakeup said:
Are you on drugs? Or you have an LED that deliver 300 lumens per watt? If you have I'd like to buy some, so would most of the professional led lighting world.

This is why LEDs get a bad name through ridiculous claims like this. I am
Sure your product is 'adequate' but to make such a claim v fluorescent is down right misleading.
Click to expand...

Its a shame your not able to make a point without being insulting and no I am not on drugs. Maybe you should try some to calm yourself down a little.

I'm sure most boat owners will be aware of the pathetic output of most 300mm (1ft) fluorescent fixtures sold into the leisure market. Fluorescent tubes output their light in a 360deg pattern and many 12v fixtures have poor or non effective reflectors and equally poor diffusers. Consequently much of the light output from a flourescent tube goes in the wrong direction with the balance of light further attenuated by an often inefficient diffuser fitted on leisure fixtures. The effective light output onto a working surface is therefore very much reduced and very far removed from the optimum lumen output of a tube. Add in lumen depreciation of any thing other than a new fluorescent tube and most users find the light output is actually ibismal. That's why many owners convert their existing fluorescent fixtures to LED.

In contrast, a good quality T5 300mm LED tube with 66 high output surface mounted LEDs, each of which, has it's 120 degree light output pretty much 100% directed at the work surface. These lamps offer a light output in excess of 500 lumens which I believe offer a far superior effective light output than the equivalent 300mm fluorescent tube. I stand by my view that the effective light output of the latest LED tubes is at least equivalent to 3 standard fluorescent tube fixtures. There are of course LED tubes that output less light. Boat owners should check the specification of LED tube lamps sold and check that they compare the in terms of both quality and light output before purchasing.

Regards
 
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hm,

the way I read both posters statements I think you're both right only that wakeup talks generally on led output and you consider fixture shape/reflector quality/etc.

However, Adrian, the OP never mentioned 300mm long fixtures (only 150mm! and iirc he did mention he doesn't want to do serious modifications) hence no need to push for such led strips.
I'd be very impressed and disappointed if Alf's cabins were fluorescent lit (horrible light quality imho)

cheers

V.
 
Thanks for the input all....

I will not go the fluorecent route, but for expediency will replace the existing rectangular ones with relatively cheap round, flush mounted traditional lighting for the time being.

later on, I may change all the ceiling lights onboard to something more modern, but that will have to be a winter job, not 2 weeks before going away...
 
Adrian Jones said:
Its a shame your not able to make a point without being insulting and no I am not on drugs. Maybe you should try some to calm yourself down a little.

I'm sure most boat owners will be aware of the pathetic output of most 300mm (1ft) fluorescent fixtures sold into the leisure market. Fluorescent tubes output their light in a 360deg pattern and many 12v fixtures have poor or non effective reflectors and equally poor diffusers. Consequently much of the light output from a flourescent tube goes in the wrong direction with the balance of light further attenuated by an often inefficient diffuser fitted on leisure fixtures. The effective light output onto a working surface is therefore very much reduced and very far removed from the optimum lumen output of a tube. Add in lumen depreciation of any thing other than a new fluorescent tube and most users find the light output is actually ibismal. That's why many owners convert their existing fluorescent fixtures to LED.

In contrast, a good quality T5 300mm LED tube with 66 high output surface mounted LEDs, each of which, has it's 120 degree light output pretty much 100% directed at the work surface. These lamps offer a light output in excess of 500 lumens which I believe offer a far superior effective light output than the equivalent 300mm fluorescent tube. I stand by my view that the effective light output of the latest LED tubes is at least equivalent to 3 standard fluorescent tube fixtures. There are of course LED tubes that output less light. Boat owners should check the specification of LED tube lamps sold and check that they compare the in terms of both quality and light output before purchasing.

Regards
Click to expand...

OK stand by your assertion but you will be in a club of one. Some maths to prove your calcs, real world measurements or IES data might convince me you know what you are talking about. How about some data with regard to lumens per watt, lumens per circuit watt and total fixture lumens out at say .5m versus a fluorescent. Then I will believe your 3 times claim. I think if you are delivering the same lumens for the 8watt that should be enough to convince a buyer together with the superior CT, lumen depreciation, durability and switching gear (driver) reliability. No need to make silly claims. Oh and please don't go down the Photopic vs Scotopic measurements argument because that will show you are buying into the sales literature from the usual chinese LED suspects. If you really stood by your claim, you would only need a 2.5watt device to replace the 7 watt tube, but you are offering an 8watt, go figure?

Oh and the reason for the 'direct nature' of my reply is that you are touting your wares to all on here, not merely expressing your opinion, and giving the forumites duff and misleading info which is not on IMHO. Respect aussi
 
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Divemaster1 said:
Thanks for the input all....

I will not go the fluorecent route, but for expediency will replace the existing rectangular ones with relatively cheap round, flush mounted traditional lighting for the time being.

later on, I may change all the ceiling lights onboard to something more modern, but that will have to be a winter job, not 2 weeks before going away...
Click to expand...

Probably the best router to go DM. If you can fit the usual 50mm GU5.3 fittings then there are now some pretty good 4 watt and 7 watt LED lamps you can fit later that will reduce you power consumption form usual 35 watt 12volt, whilst giving a good quality light, this route also gives you a very wide choice of fixtures. PM me if you want any guidance to some good product that you can source yourself. I am not selling these I just know a bit about LEDs. Actually is your DC lighting circuit 24volt or 12volt?
 
Big vote for LED from me, save a load of leccy and looks good to, bright white/warm white etc
Some nice fittings at our local caravan shop to.
 
wakeup said:
Probably the best router to go DM. If you can fit the usual 50mm GU5.3 fittings then there are now some pretty good 4 watt and 7 watt LED lamps you can fit later that will reduce you power consumption form usual 35 watt 12volt, whilst giving a good quality light, this route also gives you a very wide choice of fixtures. PM me if you want any guidance to some good product that you can source yourself. I am not selling these I just know a bit about LEDs. Actually is your DC lighting circuit 24volt or 12volt?
Click to expand...

I think you have rather overstepped the mark with this post. It's not the technical argument of the content that concerns me. It's the rather sad and sly use of a further insulting comment in the reason for edit on the page footer. The use of Numpty in reference to me and the added racialist remark in respect of Chinese people I find quite objectionable.
 
Adrian Jones said:
I think you have rather overstepped the mark with this post. It's not the technical argument of the content that concerns me. It's the rather sad and sly use of a further insulting comment in the reason for edit on the page footer. The use of Numpty in reference to me and the added racialist remark in respect of Chinese people I find quite objectionable.
Click to expand...

Ok so you do have an eye for detail :D yet you don't answer the technical questions, keep on pedalling your Chinese products, but do it elsewhere.

Actually I had a look at your web site and for the money your products are ok, but just ok, pity you can't give reasonable advice and set proper expectation as to their performance.

Nothing remotely racist in using the term Chinky, short hand, sloppy, but not racist.
 
Guys, please put your light sabres down and may the force be with you !!!

I'm starting to regret having posted this one up here and not done more research myself :(

As yet, no-one has answered my original question which was replacement rectangular lights...

The old lights (24V by the way) have been there for some years and will have left indentations in the ceiling fabric, so new ones will have to be same size, or marginally bigger....
 
Alf, have you tried a local car / truck / couch accesory shop ?
or a local light shop,
I have browsed quite some marine lightning catalogs recently,
but believe that you won't find something with that "vintage" look in there
 
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