G2 Insight has some problems.
The headlight bulb is NOT the same as the high beam bulb. The high beam bulb doubles as the DRL bulb, so if you switch it, you will get a CANBUS DRL error unless you use resistors or something.
ALSO: On the G2 Insight the DRLs are in a special housing, so it might be difficult to find a bulb that fits inside of there, or you might have to remove the lids.
That being said, I replaced my headlight bulbs with LEDs and I love the results. They aim low of course (due to the stock projector housings) so they don't blind other drivers, but they are way better at illuminating the road than the old halogen bulbs were. I almost never have to use my high beams because of the good low beam headlight LEDs.
I got this kit:
I know you were asking about cheapo $10 ebay ones, I've never seen LED headlights that cheap. Maybe they can be produced cheap like that now? But I'd be kind-of wary of potential defects. But maybe you can be the proverbial guinea pig and let us know how they work out?