LED Truck and Trailer Lights Since 2003 · Weishikang (Shanghai) Import and Export Co., Ltd.
4 Inch Round LED Stop Turn Tail Lights

4 Inch Round LED Stop Turn Tail Lights

Eight lamps share one 4 inch round aperture: from a 7-diode entry lamp to a 40-diode version with strobe, plus the F3 Piranha family with its 3-pin right-angle plug.

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8 models

Every 4 Inch Round LED Stop Turn Tail Lights We Produce

4 inch round 7 LED tail lamp for trucks - product photo
4 Inch Round LED Stop Turn Tail Lights Multi Functions 4” Round 7 LED Tail Lamp For Trucks

4 inch grommet-mount round lamp, SMD 2535 7 LED

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7 LED round truck tail lamp with reflective bezel - product photo
4 Inch Round LED Stop Turn Tail Lights 7LED Round Truck real Lamp with reflective bezel

4 inch 7 LED round lamp with reflective bezel

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Universal 9 LED round truck tail lamp - product photo
4 Inch Round LED Stop Turn Tail Lights Universal 9LED Truck Tail Lamps With Multi Functions

4 inch round 9 LED lamp for higher rear output

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40 LED 4 inch truck tail light with strobe function - product photo
4 Inch Round LED Stop Turn Tail Lights 40LED 4” Truck Tail Light with Low-High and Strobe Function

4 inch round 40 LED lamp with low-high and strobe

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Chromed bezel F3 Piranha 12 LED truck tail lamp - product photo
4 Inch Round LED Stop Turn Tail Lights Chromed Bezel F3 Piranha 12 LED Truck tail Lamp With 3-pin Connector

F3 Piranha 12 diode lamp with chromed bezel

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Strobe F3 Piranha 12 LED truck tail light - product photo
4 Inch Round LED Stop Turn Tail Lights Strobe F3 Piranha 12 LED Truck Tail Light

F3 Piranha 12 diode lamp with strobe capability

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14 LED 4 inch truck stop turn tail light - product photo
4 Inch Round LED Stop Turn Tail Lights Popular 14led 4” Truck Stop Turn Tail Light

4 inch 14 diode lamp, grommet or flange mount

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F3 Piranha 12 diodes sealed stop turn tail light - product photo
4 Inch Round LED Stop Turn Tail Lights F3 Piranha 12 Diodes Sealed Stop Turn Tail Light

Sealed F3 Piranha 12 diode stop turn tail light with reverse

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The Problem This Category Solves

Most trailer panels are already cut for 4 inch round lamps, so the real decision is output, mounting hardware and connector — not panel work. This category keeps the aperture fixed and varies everything else, so a fleet can upgrade output or add strobe without touching the panel.

Who Buys It

Trailer builders, fleet workshops, and aftermarket distributors who move 4 inch round lamps in volume.

Core Advantages

  • One aperture, diode counts from 7 to 40
  • Rubber grommet or flange mounting depending on model
  • F3 Piranha versions fit a 3-pin right-angle plug for shallow panels
  • Chromed bezel, reflective bezel and plain versions
Application scenarios

Where These Lamps Are Fitted

Trailers

High-count marker and rear lighting for long combinations

Specialty Vehicles

Warning, strobe and guarded lighting for working vehicles

Solutions

Programs That Use This Category

Rear Lighting Systems

One supplier for the whole rear panel

Warning and Strobe Lighting

Flash behaviour built into the lamp, not bolted on

OEM and Private Label

Your brand on a factory-direct lamp range

Related reading

FAQ

Questions About 4 Inch Round LED Stop Turn Tail Lights

Do all models fit the same hole?

They are all 4 inch round lamps; grommet-mounted versions use the standard grommet aperture, and one model also offers flange mounting.

Which model has strobe?

The 40LED version offers low-high and strobe; the F3 Piranha 12 LED strobe lamp is the compact option.

What is the difference between the Piranha lamps?

Same 12-diode board; one adds a chromed bezel, one adds strobe, one is the plain sealed lamp that also covers reverse duty.

Are grommets supplied?

Grommet supply is confirmed at order stage for grommet-mount models.

What voltages are available?

12V, 24V and 10~30V across the category.

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Send Your Panel Dimensions and Volume

We will confirm which models in this category fit and quote against your quantity and voltage.

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