led style bulbs

Definitely. Doesn't make sense otherwise.

In my experience, the $1 eBay bulbs can last just as long as a those from a US store. The difference is color accuracy (some "white" LEDs on eBay have a hint of blue) and lack of warranty. "Higher quality LED bulbs" don't exist on the internet. They're all the same. Which is why I say go for the store that has the best warranty (SBLEDs.com), or go with the cheapest (eBay). Just depends what your priorities are. If you're not skilled enough to make your own like darelldd, it's all a game of luck anyway.

 

F8L already gave a good answer in one of your threads.

 

No. LED bulbs for foglights are pretty useless on the road as far as luminosity is concerned. PIAA or Nokya halogen bulbs are fine, just make sure you get Stage 1 bulbs with the same wattage as stock (<55w). Anything more might melt your harness.

HID projector foglights IMO are the most effective if they can be aimed at the ground correctly. 3000k color should also help do the trick.

 

HID and LED have similar characteristics and both would be useless as fogs if you just stick the bulbs in there. I agree with macmaster that you'd need a 3000K HID projector kit if you want to improve visibility on top of the headlights.

Unless you don't care about fog functionality and just want an exact match, I'd just stick with the PIAA referenced in stream's thread. PIAAs are a bit whiter and brighter than stock fog bulbs.

 

I agree. Stick with a low Kelvin rated halogen bulb unless you plan on doing projector foglights. Even then most people agree that projectors with halogens are still better for fog. The extra brightness of the HIDs work against you when the light is reflected back into your eyes which causes your retinas to become less dilated. This will ruin your long distance vision. This is also why you don't want the headlights producing a lot of light right in front of the car and why the best headlights are called projectors. They project the light further down the road to increase distance vision.

Standard LEDs do not produce enough light to be useful for night vision. There are specialty foglights that use LEDs but I don't know if they have any in the size you would need for a Prius and I'm not sure they would work any better than the PIAA bulbs.

 

In that case I suggest HID projectors if you can get them installed. The problem with typical foglights is that they only broadcast light just in front of the car and off to the sides. Having the light to the sides is good for animal viewing but the distance is so short that you will hit them long before you can react.

If you wanted to go all out you could look into having a projector retrofit done. It would likely cost you over $400 but you would have incredible night visibility. lol

Here is more information for you:

http://www.danielsternlighting.com/tech/lights/fog_lamps/fog_lamps.html

Here is a retrofit that makes me drool!