[RedDevil]

As much as I like the economy gain from the few LED's I've put in my car, the dome light swap to LED actually lost me some economy.
As I replaced the 8W uncandescent bulb with a 10W led grid, and did the same with the boot light.

Once at night I needed something from the boot and could not find it in the weak orangy shine of the boot light. I had to use my phone photo light to retrieve what I sought.

I had enough. I ordered some 10 Watt 4x6 SMC LED grids and put them in.
Now you could do brain surgery in the boot. And the dome light is bright enough to not only light up the interior, but also anything surrounding the car. At night I unlock my car from a distance, which fires up the dome light, so it helps me avoid the dog turds in the street

In all honesty I enjoy the LEDs that reduce my economy most