Description
WAS 545BC/I/MC Truck Outline Lamp
Your rear outline lamp is dead. Or cracked. Or the MOT is next week. The WAS 545BC/I/MC truck outline lamp fixes it. £13.49. 12-24V LED. Red. Rear fitment. 500mm cable. Fit it and forget it.
What Is the WAS 545BC/I/MC Truck Outline Lamp?
How the Dual-Voltage LED Outline Lamp Works
The 545BC/I/MC runs on 12V and 24V systems. No converter. No relay. Plug it into a 12V rigid or a 24V artic. The internal driver handles both. Red LED light for rear outline marking. 500mm flying lead gives you clean wiring to the vehicle harness.
Why Rear Outline Lamps Fail
Water ingress kills standard lamps. Vibration cracks cheap housings. Filament bulbs blow every six months. The 545BC/I/MC uses LEDs. No filament to break. The housing is sealed. Rear position means it meets ECE R48 and R10. Road legal across the UK and EU.
WAS 545BC/I/MC Truck Outline Lamp — Full Specifications
| Specification | Value |
|---|---|
| Manufacturer | WAS |
| Part Number | 545BC/I/MC |
| Fitting Position | Rear |
| Voltage | 12V – 24V |
| Lamp Type | LED |
| Colour | Red |
| Cable Length | 500mm |
| Light Source | LED array |
| Mounting | Surface mount |
| Condition | New |
| EAN | 5901323106606 |
WAS 545BC/I/MC Truck Outline Lamp — Compatibility
Confirming Fitment
Fits any commercial vehicle requiring ECE-approved rear outline marking. Trailers, rigid trucks, articulated units, curtain-siders, tankers, and agricultural machinery. Mounts to vertical or slightly angled rear surfaces. Red only for rear position — never use red on the front.
Check ECE R48 lighting regulations for legal positioning. Vehicles over 6 metres long require rear outline lamps at the top corners.
H3: Cross-Reference Table
| Brand | Trade Number |
|---|---|
| WAS | 545BC/I/MC |
| WAS (standard) | 545BC/I |
| Hella | 2BA 003 843-011 |
| Aspöck | 0851-0201 |
| PROPLAST | 40100005 |
When and Why to Replace
545BC/I/MC Symptoms — What to Watch For
Symptom one — Light completely dead. No red output. The LED board has failed. Water ingress is the usual cause. Your trailer is now illegally dark at the rear top corners.
Symptom two — Dim or flickering output. Some LEDs work. Others do not. Or the light flashes randomly. The internal driver is failing. Replace before it fails completely during a roadside inspection.
Symptom three — Lens cracked or housing broken. Stone strike while driving. Or shunting damage in a yard. Water will enter. The LEDs will corrode. The lamp will fail within weeks.
Fix Rear Outline Lamp Failure — Fit LED, Fit Once
Filament outline lamps last 5,000 to 10,000 hours. LEDs last 50,000 hours minimum. The 545BC/I/MC costs more upfront. It costs less over five years. No bulb changes. repeated ladder climbs. No MOT failures.
Why Choose the WAS 545BC/I/MC Truck Outline Lamp?
12V to 24V automatic operation
One part number for mixed fleets. Run it on a 12V rigid. Swap to a 24V artic. Same lamp. No stock keeping confusion. The internal driver accepts 10V to 30V DC. Your workshop fits one lamp across every trailer.
carries ECE R48 and R10 marks. That is legal for road use across the UK and EU. WAS builds to commercial vehicle standards. WAS technical documentation confirms IP67 rating and vibration testing.
500mm cable saves wiring joins
Cheaper lamps give you 150mm. You need extensions. Every join is a potential failure point. The 545BC/I/MC gives you 500mm. Reach your harness without splices. One continuous cable. One less thing to corrode.
Buy WAS 545BC/I/MC Truck Outline Lamp Online
£13.49 each. New WAS LED outline lamp. Same-day dispatch on orders before 3pm. Buy two — left and right rear corners. Buy six for a full trailer set. Stock your workshop shelf properly.
Installing the WAS 545BC/I/MC Truck Outline Lamp
Step-by-Step 545BC/I/MC Fitting Guide
Disconnect trailer from vehicle power. Isolate the lighting circuit.
Remove the failed outline lamp. Usually two self-tapping screws.
Cut the old cable back to clean copper. Strip 8mm of insulation.
Connect the new 545BC/I/MC. Red to positive (+). Black to negative (-). Use crimped butt connectors with heat shrink — not twist-and-tape.
Mount the lamp. Surface mount with two screws. Use rubber grommets or sealing washers under the screw heads.
Secure the 500mm cable with cable ties every 200mm. Prevent chafing on chassis edges.
Test function. Red light must illuminate steadily. No flickering.
Seal screw holes with non-corrosive silicone. Stop water tracking behind the lamp.
Professional fitting time: 10 minutes per lamp including cable routing.
FAQs
Can I use the 545BC/I/MC on the front of my truck?
No. Red is for rear position only. The front of your vehicle requires white or amber outline lamps. Using red on the front is illegal under ECE R48 and will fail an MOT.
What is the difference between 545BC/I/MC and 545BC/I?
The MC suffix indicates multi-voltage and EMC compliance. 545BC/I is 24V only. 545BC/I/MC runs on 12V and 24V. Use MC for mixed fleets.
Is this lamp IP rated for UK weather?
Yes. IP67 minimum. Fully sealed against dust and water immersion to 1 metre. WAS tests to commercial vehicle standards. Standing water on the lens will not enter the housing.
My trailer has a 7-pin plug. Will this lamp draw too much current?
No. LED outline lamps draw 0.5W to 1W maximum. A full set of six lamps draws less than 6W. Your 7-pin circuit handles that easily.
Will this pass a UK MOT and annual trailer test?
Yes. Red rear outline lamps are required on vehicles over 6 metres long. The 545BC/I/MC carries ECE approval. No advisories. No fails. Provided you mount it at the correct height and position. Marker Light
