42mm 0.3W 6-LED 6500K 27-Lumen White Light Bulb for Car (DC 12V)

Pros: I'm using it in the overhead dome (ford focus mk2).
It's about as bright as (and much whiter than) the original bulb but at a fraction of the energy/heat emission.
Works fine around freezing temperature (~0°C, 273Kelvin, this winter hasn't grown very cold yet...).

Cons: The metal ends reach over the glass cylinder, which makes it very prone to accidental shorting in the tight compartment where it's fitted on a Ford Focus Mk2, I blew a fuse real quick while fiddling to get it into position.
I ended up wrapping a narrow strip of paper around the middle of the lamp for better control when fitting it.

Other: I would buy it again, and just be very careful to avoid shortage when fitting it.

Pros: This is CHEAP! In Sweden u pay like $25 for 2 LED-lamps like this. I used this ones in the back of my trunk in my cars. It looks more fresh with this "xenon-white" lamps. U even getting more lumen with LED-bulbs compared to halogen bulbs.

Cons: No cons so far, everything works like a charm! If u install LED-lights for your licenceplate, be careful so u dont touch the chassie with your lampholder, u might shoot the fuse. The shipping could be a little faster, took me 5 weeks to get the package! Thats to long. I can handle a couple of weeks thou, but 5w is to much!

Other: Get it, this is CHEAP!

Pros: It is a really good product, the light is crystal white. It fits to my car perfect - it brings better look to interior of your car. For this price it is a very good alternative for expensive LED lights.

Cons: I ordered one a it went broke after few weeks - but DX support solved this by sending me a new one and it has been working since then 100 %.

Other: I got LED lights everywhere in my cars and all of them are from DX.

Pros: This ais a great bulb light for cars habitacle. With a really strong light. Even, this light is cold, so you can touch it, or put it near a plastic surface and it wont melt. Una gran bombilla para el interior de los coches. Tiene mucha potencia y es fría, por lo que no importa tocarla o ponerla en contacto con superficies plásticas, ya que no las derretirá.

Cons: Maybe it's plastic, instead of cristal, but this way it's lighter too. Quizás que el acabado sea en plástico, pero eso también hace que sea más ligera.

Other: An impressive high power light for your car. Una bombilla con mucha intensidad para tu coche.