Difference between W3W & W5W bulb?

[E30M3SE]

3w v's 5w.

[BrianMillar]

As far as I can tell they are both physically the same size.

One is a 3 watt W3W. The other is a 5 watt W5W

W3W is possibly a common American size. What kind of car is it for?

Beaten to it

Edited by BrianMillar on Thursday 9th December 14:59

[HellDiver]

A lex said:

One more stupid question.... consequence of using a 5w, when it should be a 3w?

Your bulb will be 2W brighter than it should be. None, basically.

[Stonebridge]

A lex said:

Gotcha cheers.

'Wedge 5 watt' makes sense I guess

Its for a Jeep, so the American angle is correct.

One more stupid question.... consequence of using a 5w, when it should be a 3w?

It will draw more current.
Current drawn = power divided by voltage
On a 12V system the 3W draws 1/4 amp. The 5W draws 5/12 amp