The specification of a light source for forward illumination on a Toyota RAV4 depends on the vehicle’s model year and trim level. This specification dictates the physical size, shape, and electrical properties of the bulb required to fit and function correctly within the vehicle’s headlamp assembly. For instance, a 2017 RAV4 might use an H11 low beam and a 9005 high beam bulb, while a 2020 model could utilize LED projectors, obviating the need for replaceable bulbs.
Correctly identifying this specification is crucial for ensuring optimal visibility and road safety. Selecting the appropriate light source prevents issues like poor beam patterns, premature bulb failure, or damage to the headlight housing. Historically, halogen bulbs were the standard; however, advancements in lighting technology have led to the increasing adoption of high-intensity discharge (HID) and light-emitting diode (LED) options, offering improved brightness, lifespan, and energy efficiency.