I did try the LED indicator bulbs from eBay first, but replaced them because they weren't bright enough. They were dimmer than the incandescents I replaced, a big dissapointment.
During bright day light they were difficult to see at all, at night they gave that washed out / faded yellow look that you get when the lens housing has been sun damaged.
Basically, when it comes to the larger bulbs, if they don't give or stand by a lumens rating then they are a risk.
With the smaller bulbs you will always have something that is brighter than incandescent, thus eBay as a source is ok.
I can't speak for Jaycar Australia, but in NZ the only LEDs they sell are the traditional single bulb (bad) ones, not the SMD cluster (good) ones.
Something to remeber is that LED bulbs will basically last forever, so don't be afraid to spend a little extra to get some good ones. When the time comes to sell the car you can swap the orginals back in and take the LEDs with you to your next car. You've never have to buy another bulb ever again.
Edited by unhuman, 09 October 2014 - 09:06 PM.