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What Do Leds Look Like?

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We are minimal EHU users and I am looking to replace the G4 bulbs with LED ones. There are a total of 80w of bulbs and this is nearly 7a of current with all on. However, the LEDs come as warm or cold light. How do these colours equate to the halogen originals?

Edited by blueflightmedic

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This may get you started. http://www. jmgoods. co. uk/acatalog/index. html

 

This is a Forum Topic which has all the answers I think. http://www. caravantalk. co. uk/community/topic/44237-l-e-d-s-m-d-lights/

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That might well be impossible as the SMD (I suppose you mean SMD and not LED) are either bright white or warm white.

 

The nearest light comparable to a halogen in the SMD range is to have a bright white and a warm white in the fitting if you have the space,

 

BO

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I've just received and fitted 9 MR11 SMD's from Hong Kong. 7 warm white and 2 white. The warm whites are about the same as the original halogens, maybe slightly yellower. The 2 white's are very white and are just right for the kitchen but you wouldn't want them everywhere.

 

I'm now waiting for the G4's to arrive.

 

P. S. All thanks to Bailey Oklahoma's article, thank you.

Edited by Shirl250

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How long did they take to get to you Shirl,

 

BO

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I have two of these fitted inside each of the roof lights of my Olympus. Both together they give the power output equal to a good 70w mains light bulb.

I have one warm white and one cold white and it gives a perfect lighting spectrum. It also allows me to have a more gentle warm white light in the evening on setting one, just using one of the LED's. Works a treat.

 

http://www. ultraleds. ..ack-p-2213. html

http://www. ultraleds. ..ack-p-2183. html

 

I realise these bulbs are expensive, however with LED's you measure them by the Lumens output, not the wattage, as not all LED's are created equally and these bulbs are the brightest I have found by far. They also have a voltage regulator so they are safe between 8-30vdc

 

I have also fitted two of these smaller G4 units in my washroom, they go nicely inside the recessed light fittings :-

http://www. ultraleds. ..15w-p-1673. html

 

These 501 size bulbs in the kids bunk reading lights :-

http://www. ebay. co. u. ..=item3370cd8b92

 

These MR11 sized bulbs in the reading lights :-

http://www. ultraleds. ..ver-p-2197. html

Edited by dreadly

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Hiya,

 

The MR11's took just over a week. The G4's from a different supplier are yet to arrive and have taken a week and a half so far. .....

 

But 16 SMD's altogether cost about £30 incl postage . ....as far as I can remember. .... and I'm not in any particular hurry. ...

Edited by Shirl250

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Thanks Shirl. Thats not a bad delivery time considering its Chinese New Year.

 

While I am here - Happy Chinese New Year. :D

 

BO

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Bo

 

I was totally amazed when they arrived in a week ! I couldn't believe it ! And they all work and look brilliant ! I've just ordered 5 more G4's from the same people, for the overhead lights and the awning light (forgot them !) so we'll see if they come before the outstanding ones ! Thanks again for all your useful info !

 

And a happy Chinese New Year to you too !

Edited by Shirl250

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My pleasure honey pie. :D

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That might well be impossible as the SMD (I suppose you mean SMD and not LED) are either bright white or warm white.

BO

You can get Day White SMD LEDs which I prefer but they are more expensive.

 

http://www. ebay. co. uk/itm/MOTORHOME-G4-6-LED-12V-AC-DC-60LM-DAY-WHITE-BULB-/130432871674?pt=UK_Campervan_Caravan_Accessories&hash=item1e5e67acfa

 

Dave

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You can get Day White SMD LEDs which I prefer but they are more expensive.

 

http://www. ebay. co. u. ..=item1e5e67acfa

 

Dave

 

If you have a look at the lumen figure they are commonly known as bright white. If they want to call them day white, it is up to the seller.

 

The following are 99p and the same K figure - you would not be able to tell the difference between yours and linked ones.

 

 

http://www. ebay. co. uk/itm/New-G4-9-LED-5050-SMD-Camper-Marine-Boat-RV-Light-Lamp-Bulb-Bright-White-12V-DC-/320786844551?pt=UK_Light_Bulbs&hash=item4ab062cb87

 

 

 

BO

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Thanks BO and particularly dreadly. I have wandered around the ultraleds site before, and the 225 lumen devices look incredible - that would be good for the kitchen area. In fact, with that brightness I would consider fitting a dimmer to the side of the light fitting instead of just a switch.

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If you have a look at the lumen figure they are commonly known as bright white.

BO

 

The lumen figure can't alter the colour temperature nor be a guide to it but am surprised at 5000 to 7000 kelvin - that's a significant range for one light source!

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If you have a look at the lumen figure they are commonly known as bright white. If they want to call them day white, it is up to the seller.

 

The following are 99p and the same K figure - you would not be able to tell the difference between yours and linked ones.

 

 

http://www. ebay. co. u. ..=item4ab062cb87

 

 

 

BO

 

The colour temperature is the guide to the colour of a light source not the lumens value.

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The colour temperature is the guide to the colour of a light source not the lumens value.

 

Well done Dee - you passed the test

 

BO :D

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Thanks BO and particularly dreadly. I have wandered around the ultraleds site before, and the 225 lumen devices look incredible - that would be good for the kitchen area. In fact, with that brightness I would consider fitting a dimmer to the side of the light fitting instead of just a switch.

 

No problem. They are VERY bright, no mistake. Much brighter than the originals. Useful and necessary in my case due to the inherent lack of lighting in the Olympus IMHO so I had some compensating to do.

I have considered soldering two or three of the cheaper ones together to get the same output, as I have tried the 99p LED's from China and they seem around half the brightness TBH, so soldering two or three together in the same fitting would also do the job nicely and be a fair bit cheaper. Alas though, I am a lazy so and so and just bought the expensive ones :(

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The use of watts to describe the output of domestic bulbs is being phased out and most now show the output in lumens regardless of the type whether filament, fluorescent or led.

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Thanks BO and particularly dreadly. I have wandered around the ultraleds site before, and the 225 lumen devices look incredible - that would be good for the kitchen area. In fact, with that brightness I would consider fitting a dimmer to the side of the light fitting instead of just a switch.

I am considering dimmers with my home bathroom 7w LEDs. They work fine, plenty of light with six 7w led bubs thats 42 watts in all. Beats a single 50w halogen. My electician has fitted dimmable light fittings but says he is not happy with the dimmer switches that are available. He found that there were flickering problems when the dimmer is low so he sent it back and he is awaiting a batch of new products in the new year. I assume that this would also apply to the caravan.

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I am considering dimmers with my home bathroom 7w LEDs. They work fine, plenty of light with six 7w led bubs thats 42 watts in all. Beats a single 50w halogen. My electician has fitted dimmable light fittings but says he is not happy with the dimmer switches that are available. He found that there were flickering problems when the dimmer is low so he sent it back and he is awaiting a batch of new products in the new year. I assume that this would also apply to the caravan.

 

A lot of these problems are down to the lights not pulling enough of a load from the Dimmer Switch, the answer i have found is to bite the dust and splash out on MK dimmers which don;t seem to have this problem.

 

As an aside where has he put the dimmer switch, i didn't think you could put one in the bathroom?

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As an aside where has he put the dimmer switch, i didn't think you could put one in the bathroom?

 

According to IEEE you are correct Andy.

 

 

BO

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We tested our new SMD's for the first time in anger this weekend ! We were at Cherry Hinton and they had a power outage on Sunday evening. I spent a while checking fuses, circuit breakers and swapping EHU plugs. ...until I realised there were no lights on any of the bollards ! Then it sunk in ! :rolleyes: It was only off for a few hours but the SMD's looked and worked beautifully !

Edited by Shirl250

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Hey - I am glad they worked out okay. Very satisfying to hear some feedback. Thanks

 

BO

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We found Bright White too bright / slighly blueish and cold, all subsequent LEDs we bought were warm white. We go off EHU for periods of up to 7 weeks and find LEDs great.

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We found Bright White too bright / slighly blueish and cold, all subsequent LEDs we bought were warm white. We go off EHU for periods of up to 7 weeks and find LEDs great.

 

Do you mean LED or SMD?

 

BO

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