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LED replacements for halogen puck lights
Posted by david on September 15, 2015 at 10:24 amHas anyone found an LED replacement for those nasty halogen puck lights used in the interior overhead?
Archived replied 10 years, 11 months ago 9 Members · 13 Replies -
13 Replies
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Hi,
I replaced all the halogen bulbs with LEDs. I changed the bulb only not the fixture. If you are not in a hurry check D H Gate. They have a good selection and are very reasonable. There is a failure rate for all LEDs, usually in the first 5 hours or so, so order some extras. My coach had a total of 84 puck lights, sconces, etc. I was like an easy bake oven in the coach. It is much cooler inside now due to the heat reduction of the light fixtures.
If you take the time to check D H Gate you will like the pricing.
Mikee
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Mikee: What kind of coach (converter) do you have? Do you remember the part numbers?
I agree with your comment about the “easy bake oven”. That is exactly what a coach is with the incandescent lights on.
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Dick, these work well if your fixtures have the sideways orientation of the halogen bulbs and don’t have dimmers on the circuit. Remember, the leads of all LEDs have a positive and a negative while halogens don’t care which is positive, so you may have to swap the wires on your fixture if they don’t light. I changed nearly 50 and had to re-wire only three. I got the “warm white” from LED Wholesalers and they have a color temperature very similar to the halogens they replaced, but very slightly whiter and slightly brighter.

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If you use these and I have done so, you may need to cut off about 1/16th of an inch from the small wire contacts… they are great..
Pres
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The old way incandescent lights are dimmed is to use a rheostat that increased the resistance, causing the lights to dim. The more modern way is to use PWM, pulse width modulation, essentially turning the light on and off so quick that the human eye sees it as dim.
Either way works fine with incandescent bulbs. Standard LED “bulbs” do not work well with the rheostat method and will barely dim before they turn off completely. There are more advanced LEDs that are dimmable and are sold specifically saying that they are dimmable with the disclaimer that they require PWM.Some multiplex modules in coaches with multiplex systems utilize PWM and when paired with LEDs designed for them will dim effectively.Like Mikee, I have changed out over 70 puck light halogen bulbs for LEDs and since my dimmable lights are controlled by PWM multiplex modules, I purchased the appropriate dimmable LEDs.The reduction in current draw and corresponding heat generation is around 70-80%, depending on the source of information quoted.
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I put in the ones from hero and they do dim some but not like the old ones
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I used the smd5050 led chips. there are 12 of the m on the disc. I do not remember the D H Gate part number but if you go to D H Gate and query 12 volt leds and scroll thru you will find them.
There are dimmable ones and ones that are not dimmable. Be sure you read the description. If it does not say dimmable they are not.
Mikee
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Mikee, add some information to a signature line. It will help you get more pointed and accurate responses to posts and it will help others understand your perspective when you post to the forum.
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What year Parliament do you have?
The older “Ed” style dimming and lighting control has presented a problem with being dimmed with LED replacement bulbs or fixtures.
Any of the Parliaments after Rick and I started running and designing the coaches (27 and up) are completely compatible with dimmable LED lighting.
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