Amazon.com: PCVBMLAUT Compatible with Toyota Yaris (2006-2020) H4 LED Headlights, 9003 High Low Beam H11 Fog Light LED Bulb Kit, 10000LM 6000K Cool White Led Halogen Replacement Bulbs, Plug and Play, Pack
Toyota Yaris (Echo) 1999-2005 optical headlight unit replacement (1999, 2000, 2001, 2002, 2003, 2004, 2005) - iFixit Repair Guide
Toyota Yaris Bulb Size Guide: Headlights, Fog, Tail Lights
How to Replace Headlight Bulb on a Toyota Yaris - H4 Headlight Bulb Replacement - YouTube
Led headlights? - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site