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|1,6,7,8 - Series and Mini Cooper General Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.|
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| Originally posted by Zulu95@May 17 2005, 01:58 AM |
How do these work with the low voltage supplied to provide the equivalent of 5 W marker lights using the 21 W filament bulbs? The marker function is achieved by a supply of 3.5 approx. volts but the indicator/brake function is supplied with the full battery voltage.
| Originally posted by Zulu95@Jun 12 2005, 02:46 PM |
How do they work? The marker light signal is around 3.5V, the brake/turn signal voltage is the normal 12.5V. LED's biased for 3.5V will burn out at 12.5V and if they are biased for 12.5V they will not light at 3.5V.
There is only one circuit in the X5 and the voltage is controlled by the LKM and I am led to believe it is the same for most/all mordern BMW models.
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