40 LED 4 inch truck tail light with strobe function - product photo

40 LED 4 inch truck tail light with strobe function - angled view

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

SMD 2535 40 LED of up-to-date technology, super bright
Grommet mount, fits 3-pin plug of right angle
Features engineered lens optics, functions as Stop/Turn/Tail lights
PC lens and housing ultrasonically welded together to ensure a permanent and water proof seal
DOT Approved
Also available in multi-voltage 10~30V operating range, or 24V by special order

Product Overview

The highest diode count on the 4 inch platform, with low-high output and a strobe function, and a right-angle 3-pin plug at the back. It is specified where the same lamp has to serve as a normal tail light in traffic and as an attention-getting strobe on site or at a breakdown.

Key Benefits

Low-high output plus strobe from one lamp instead of two fittings
40 SMD 2535 diodes on the standard 4 inch grommet aperture
Right-angle 3-pin plug keeps the loom tight behind the panel
IP67 welded body for outdoor and site work

Who It Is For

Buyers specifying rear lighting for utility, recovery and site vehicles where a plain tail lamp is not enough.

Problems It Solves

A separate strobe beacon adds a second hole, loom and stock line
Right-angle clearance behind the panel is often too tight for straight plugs
Site vehicles need higher rear conspicuity than road trailers

Application Scenarios

Recovery, utility and site vehicles that need a rear strobe
Trailers working in yards where reversing traffic is heavy
Fleets replacing a separate strobe beacon at rear panel level

Technical Features

SMD 2535, 40 diodes, stop / tail / turn with low-high and strobe
4 inch round, rubber grommet mount, fits 3-pin right-angle plug
Ultrasonically welded PC lens and housing, IP67
12V, 24V or 10~30V input

Materials and Construction

PC lens and housing, ultrasonically welded into one permanent waterproof body. Housing material and finish vary by model and are listed in the specification table.

Specifications

Brand Name	WEIKANG or Privately Labelled
Input Voltage	12V, 24V, 10~30V
Functions	Stop, Tail, Turn
Mounting Type	Rubber Grommet
Light Size	4”
Lens Marking	STI
IP Rating	IP67
Applications	Truck, Trailer, RV, Speciality Vehicles
Category	4 Inch Round LED Stop Turn Tail Lights
Warranty	5 years on light products
Packing	1 piece per carton as standard; custom packaging from 200 pcs
Unit weight	TBC

Values marked TBC are not published in our current documentation. Ask the sales team and we will confirm from the production record.

Manufacturing Process

Hardware production, laser marking, heat diffuser assembly, light source welding and thermal grease application run on our own semi-automatic lines. Lens installation, shell assembly, ring fixing and spring insertion follow in product assembly.