declaimer, this is not about headlights, LOL. i purchased a set of 20 LEDs on ebay for under $5. the size is #194 or #168 or #912 or #921. they are 5x5050 SMD, warm white, about 1W consumption, 7W equivalent. they replace the 5W W5W incandescent bulbs that prius cars use in these locations: front parking and side marker (x4), license light (x2), map lights (x2), door lights (x2). i didn't do vanity lights, i just never use them. one glitch: i was not able to remove right front side marker bulb, my hands are too large for that. why warm white? they match the incandescent bulbs i left behind (dome and trunk, different bulb type and next step. pictures will be coming later.
I also replaced the interior lights with warm white LEDs. Didn't like the harsh, bluish light from the so called white or cool white LEDs. The dome light and the rear hatch lights were replaced with multi SMD panel type lights that are much brighter than the ones you got, they also come in warm white: http://pages.ebay.com/link/?nav=item.view&id=231115463394&alt=web http://pages.ebay.com/link/?nav=item.view&id=321565655937&alt=web For the front parking lights, make sure the SMDs don't get too close to the headlight cover, others have had the plastic melt from the heat.
