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Old 03-10-2005, 08:33 AM   #1 (permalink)
BenzWorld Junior Member
 
Date registered: Aug 2004
Vehicle: 1999 ML 320
Location: London, United Kingdom
Posts: 19
L.E.D Indicator Bulbs

Just replaced my indicator bulbs with LED type bulbs, the lights flashes faster than normal does it means the bulbs are faulty ? or is there a fault with my indicator ? [:)][:)][:)][:)]
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Old 03-10-2005, 08:57 AM   #2 (permalink)
BenzWorld Senior Member
 
Date registered: Aug 2002
Posts: 497
RE: L.E.D Indicator Bulbs

Some flasher circuits rely on the current through the bulbs to dictate the flashing speed.

Hence, if a bulb fails, flashing speed increases.

In your case LED's use much less current than conventional bulbs which may be responsible for the flashing speed being too fast.

Either you need a ballast resistor to make up the current or you will have to revert to the original bulbs.

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Old 03-10-2005, 09:53 AM   #3 (permalink)
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Date registered: Aug 2004
Vehicle: 1999 ML 320
Location: London, United Kingdom
Posts: 19
RE: L.E.D Indicator Bulbs

Thanks a bunch, you are a gentleman and a bloke. This ballast resistor thingy is it a DIY stuff ?
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Old 03-10-2005, 10:05 AM   #4 (permalink)
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Date registered: Aug 2002
Posts: 497
RE: L.E.D Indicator Bulbs

I doubt if anyone sells them which would mean it would be a DIY thing.

The only place which might sell them are the folks who sold you the LED lights (or someone else who sells LED lights).

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Old 03-10-2005, 10:31 AM   #5 (permalink)
ACW
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Location: New Jersey
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RE: L.E.D Indicator Bulbs

Use the search for "load equalizers" - lots of info...
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Old 03-10-2005, 10:35 AM   #6 (permalink)
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Date registered: Aug 2002
Vehicle: 98ML320
Location: Manhattan
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RE: L.E.D Indicator Bulbs

try here

http://www.performanceproducts.com/ProductPage.aspx?ProductName=LED+Replacement+Bulbs &productid=109633&producttype=10
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Old 03-10-2005, 01:05 PM   #7 (permalink)
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Date registered: Jan 2004
Vehicle: 1986 560 SEC
Location: NW Ohio
Posts: 113
RE: L.E.D Indicator Bulbs


You can get current limiting resistors here:
http://www.superbrightleds.com/1157.htm
which will fix your problem.


Best Regards,



e


__________________
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Old 03-13-2005, 12:22 PM   #8 (permalink)
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Date registered: Oct 2002
Vehicle: 99 ML430
Location: southern california
Posts: 50
RE: L.E.D Indicator Bulbs

Also try Jerry at BlankBlankBlank.com he sells the resistors and a very nice rear third brakelight(L.E.D.) module to fit right in the housing.

Barry
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Old 03-13-2005, 09:08 PM   #9 (permalink)
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Date registered: Feb 2005
Vehicle: 2000 ML430
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RE: L.E.D Indicator Bulbs

Doesn't this mean that one will be consuming the same power by heating the resistor and thus defeat the purpose of the LED bulb?




Quote:
marcelc - 3/10/2005 7:57 AM

In your case LED's use much less current than conventional bulbs which may be responsible for the flashing speed being too fast.

Either you need a ballast resistor to make up the current or you will have to revert to the original bulbs.
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Old 03-14-2005, 04:34 AM   #10 (permalink)
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Date registered: Aug 2002
Posts: 497
RE: L.E.D Indicator Bulbs

Quote:
DelJ - 3/14/2005 4:08 AM

Doesn't this mean that one will be consuming the same power by heating the resistor and thus defeat the purpose of the LED bulb?

Quote:
marcelc - 3/10/2005 7:57 AM

In your case LED's use much less current than conventional bulbs which may be responsible for the flashing speed being too fast.

Either you need a ballast resistor to make up the current or you will have to revert to the original bulbs.
Yes, if your purpose was to save current, however, LED's have other advantages:
LED's last more or less for ever, no more changing bulbs, no more being stopped by police advising you your rear light has just failed.
LED's light faster which is an advantage for brake lights.
LED's are subjectively more attractive.

I personally would not 'upgrade' to LED's for anything else other than the brake lights because I like the fact that incandescent bulbs light sideways as well as forward or backwards, meaning the vehicle is better illuminated from the side (good at junctions).
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