Sidelights including halogen bulbs and LED. Sidelights are the 'small' lights that are usually used as a marker or daytime running light on vehicles. They come on with the first switching of the lights and stay on with dip and main beams.
PIAA wedge bulbs are W5W/501 fitment wedge fitment. Note that H429 Tera is a H6W fitment.
Note that some modern cars running the sophisticated bulb blown feature from the ECU. LED sidelights which do not have the calibrated electronic packs may not be suitable for this application due to the low power draw triggering the system off.