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Discussion Starter · #1 ·
I've just changed an instument panel illumination bulb. One of the four bigger ones. I fitted a 5w bulb, and checked the others to make sure they hadn't darkened.

Now that part of the panel is a LOT brighter than the rest


There are about three different wattages available in that fitting.

Did I fit the correct one ?
 

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Discussion Starter · #3 ·
Having searched the forum previusly, there's a detailed instruction on changing these bulbs, and this quotes using '501' bulbs. Not sure what these were, but now after a google search they appear to be 5w.

A closer look at the bulbs already in there reveals them to be Toshiba D5 158 73.
Which brings up absolutely nothing on a google search.

Auto bulb web pages seem pretty useless also.

I'm still not sure

I don't want to but everything back only to find it's still wrong


For the record the car's a '96 CSE 2.3t
 

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Discussion Starter · #4 ·
I thought I'd measure the resistance of a good bulb, which came out at about 10 ohms, I think, which is about 20 watts


ummm, lets try lighting it, and measuring the current, which was about 210ma @ 12v, which when running at 14v will give you about 3watts.

Think I'll go with that at it's getting dark now and I still need to put the dash back in
 
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