For the 2019 Honda Insight, both the low-beam and high-beam headlights use LED lighting. The supplied fitment data does not list a replaceable halogen bulb size or indicate a projector versus non-projector headlight variation, so confirm the vehicle’s original headlamp assembly before ordering replacement parts.
The fog lights, daytime running lights, front turn signals, parking lights, front and rear side markers, tail lights, brake lights, and center stop light are also listed as LED. The rear turn signal uses a 7440A bulb, while the reverse light uses a 921 bulb.
Interior fitment includes 194 and 7441 options for the dome and map lights. The trunk light is listed with 168 and 917 options. The license plate light is LED. Because several exterior lighting functions are LED-equipped rather than assigned a conventional bulb number, replacement may involve an LED unit or assembly rather than a standard plug-in bulb.