Side lightsThailand
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104. Side lights
Side lights, also called position lights, are low-intensity vehicle lights used to make a vehicle visible and indicate its presence and approximate width. Unlike dipped-beam or high-beam headlights, they are not designed to illuminate the road far enough for normal driving at night.
Side lights are commonly used together with other vehicle lighting and may also be used to make a stationary or parked vehicle visible in darkness. Their required use depends on national traffic rules.
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What are side lights used for?
Side lights make a vehicle easier to see and indicate its position and width. They provide much less road illumination than dipped-beam or high-beam headlights.
Are side lights the same as dipped-beam headlights?
No. Side lights mainly make the vehicle visible, while dipped-beam headlights illuminate the road ahead sufficiently for driving without unnecessarily dazzling other road users.
Can side lights be used when a vehicle is parked?
Yes. In some countries, position or parking lights must be used when a vehicle is parked on the road at night or in poor visibility. The exact requirements depend on local traffic rules.

Traffic rules
Thailand