Show your position at night: When you turn on the B30’s lights, the tail lamp glows with a steady red light—marking the car’s right rear edge for other drivers. This helps them judge your width and distance, even in dark or foggy conditions.

Signal braking and turning: It has separate bulbs for brake lights (bright red, turns on when you hit the brakes) and right turn signals (flashing red or amber). These clear signals let drivers behind know exactly what you’re about to do—stopping or turning right—giving them time to react.

Resist water and dust: The sealed lens and housing keep rain, snow, and road dirt out. No water getting inside means no foggy lens or shorted bulbs—so the tail lamp works reliably, even in heavy storms.

Fits These: All BESTUNE B30 variants (matches rear frame, electrical system, and light signal specs—confirm with VIN).

Won’t Fit These:

Other BESTUNE models: Like B50, T77, or T99—different rear-end sizes, bulb types, or wiring (tail lamp can’t attach or work).

Non-BESTUNE vehicles: Even if similar in shape, their electrical systems and mounting points differ (no functional fit; may damage the B30’s wiring).

B30 with modified rear ends: Aftermarket bumpers or trunk kits change the rear opening size—original tail lamp won’t fit (leaves gaps or blocks light).

Clean the lens weekly: Wipe the lens with a damp cloth and mild soap—remove dirt, road salt, or bird droppings (dirty lenses dim light, making signals hard to see).

Check bulbs every 6 months: Turn on the lights, brakes, and turn signals—look for dim, flickering, or dead bulbs. Replace bad bulbs fast (a non-working brake light is a safety hazard).

Inspect for water inside: If the lens fogs up from the inside, the seal is broken—replace the tail lamp (water ruins bulbs and the housing).

Tighten bolts yearly: Make sure the mounting bolts are tight—loose bolts cause the tail lamp to shift (signals point wrong or it rattles).