I recently fitted a set of SS C B's and after proberly now more than 4 hours of use the lamps blew. I checked the voltage at the Lamp holder and discovered 13.92 Volts. I contacted SS and very helpful they were too, But they said they have found some other cars with exsessive output from the alternator/battery system. Has anyone else experienced this problem and is ther a cure ? as I dont want to keep replacing lamps like they are going out of fashion. |
You'll find that on any car the voltage is rated at 14.4V whilst the engine is running.
When idling it's about what you've reported. Engine off..11.5-12.5 depending on load. |
I agree - 14 volts is quite normal -
bulbs blowing is more likely to be due to insufficient cooling for the bulbs or switching them on/off too rapidly - ie flashing. Try making an extra ventilation hole for the bulbs to dissipate a little more heat and see if that improves bulb life. regards, Paul W |
We only know of 4 cars that have a problem with high voltage. This is well under one percent of the amount of Cibie users.
Subaru state that the voltage output, with the vehicle running, should be 12.5v +/- 1.5v. All bulb manufacturers work on a target voltage of 13.7-13.8 volts and a vehicle with a higher rating will suffer shorter bulb life. If your Cibie light bulbs fail within the first year of purchase, send in the old ones with a SAE and they will be replaced, free of charge. |
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