I was going do this on the cheap, so I thought I would pick up a couple of LEDs and mount them in the existing holder. I have already drilled the holes, but just need to decide which LEDs to get. Looking on the Maplin site, they sell some 12v LEDs, so I assume I should not need a resistor in series with them. However someone in Q&A says his broke and the reply was he needed a resistor.

If I do need a resistor, how can I calculator what resistance it needs to be?

Link to Maplins: http://www.maplin.co.uk/module.aspx?moduleno=35782

Also should I go for:

- SB (Super Bright) 180mcd

- HE (High Efficiency) 30mcd

I guess HE, as they seem to have a similar brightness as to the other colours of LED they sell in this range.

Thanks,

Matt

Edited 30 December, 200916 yr by mbames

Product Features

A range of 5mm diameter LEDs from the 12V series in a T-13/4 package. These LEDs are designed to connect across 12Vdc power supply rails. They have a 12V integral current limiting resistor, which means no external current limiter is required with a 12V supply.

180mcd? not sure if that is correct, i fitted 5000mcd LED's to my Octavia interior light (in the reading lamp area) and they were pretty bright, i would say the Superb LED's look around 2-3000mcd by comparison.

Edited 30 December, 200916 yr by Gizmo68

good luck with this. if u do this add pics with details been wanting to do this for ages

I would go for the super bright LEDs, otherwise they won't shine anywhere and you'll just have two useless red lights in your interior light!

The proper W8 / Superb lamp also has illumination for the symbols on the buttons for the map lights and on off switch.

Edited 30 December, 200916 yr by ExAudiSi

Maybe I'll get a some SB and HE and try with both to see which is best....

I did think about buying the unit for a superb, but that costs money! I can do this for under a £1

Have taken a few pictures of the drilling holes, but now I need to source the LEDs, not sure I can make my Maplin order up to £35 to get free delivery, and none of the local branches (all about 25 miles away) have stock anyway. Useless!

I then have my heater washer jets to consider next :-) There again maybe I should really be thinking about fitting a new skylight to the house to prevent the additional cold water shower I seem to have in my bathroom at the moment....

Edited 30 December, 200916 yr by mbames

180mcd? not sure if that is correct, i fitted 5000mcd LED's to my Octavia interior light (in the reading lamp area) and they were pretty bright, i would say the Superb LED's look around 2-3000mcd by comparison.

Can only go with what they quote in their technical spec, which appeared to be the same on technical pdf they linked to. Might have to be a case of suck it and see...

Edited 30 December, 200916 yr by mbames