960 Lumen 12000k LED assembly for $6.30:
24-5630 SMD LED White Light Car Indoor Lamp (T10 / SV85 / BA9S 12W 12000K 960-Lumen DC 12V) - Free Shipping - DealExtreme
FIts inside the light fixture just fine, puts out a lot of bright white light. The bulb adapter showed up broken and I had to re-solder it, but the assembly itself is well made. Overall I'm pretty happy with it. I tried to take comparison photos, but cameras mostly do light-leveling so it's hard to really tell. It's brighter, I know that much!
Like the LED mods for heat, power, and longevity. Don't really like the soft glow of the stock hatch light. If you need a light back there, it probably ain't for the mood.
Nice price on the link. When are auto manufacturers going to do away with incandescent lights in the interior? Cost should be down to make them affordable for the rear light assemblies on most vehicles IMO.
Just the one issue with the solder on an adapter would make me wonder about the wiring popping off. My solder skills are shite.