9-LED LED Festoon Bulb (12V 2-Pack)

Pros: Fairly bright.
Fits perfectly on my 2005 Volkswagen Gol.
No heat at all.
I guess you can forget to turn it off and do not find your car with dry batteries on the next day.

Cons: No cons on the product.
Maybe it could be a little cheaper.

Other: Be sure to measure your lamps before buying this. DealExtreme provides an useful picture of the measurement of the length of the lamp, use it as reference to choose between 8,9 or 10 led bulbs.

Pros: Shines more brightly than regular 5 W of a lamp. Easy to mount. Illumination became more interesting to look, than regular. Consumes almost in 6 times of less energy than a regular bulb

Cons: Cold enough light, it would be desirable a shade more warmly. The price is slightly overestimated

Other: Consumed current only 60 mA, against 350mA at regular lamps. Excellently. It is possible to include illumination in salon for long time without risk to discharge the accumulator

Pros: Got these today I am very happy had no idea how bright these would have been.
When I was installing them as soon as it lite up I saw spots after super bright way better priced then ebay and best of all free shipping and only took a few days to get here can't beat that.

Cons: none as of yet will have to wait and see

Other: these are well worth the money glad I bought them I no my friends will all wanna do this when they see them

Pros: These LEDs are decently bright and the build quality is acceptable. No flickering or any signs that suggest a faulty bulb so far.

Cons: The temperature rating of the light is a nice cool white, but doesn't quite match other LEDs from DX (SKU 05789).

Other: They could be a bit brighter for my application, but they're great for the price. Correct me if I'm wrong, but these were also the only 42mm festoons that I found on DX.