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Solutions · Car Wash & Wet Industrial

The Tunnel Becomes
a Revenue Machine

High-power RGBW LED light bars for car wash tunnels, in-bay automatics and wet industrial environments. ETL listed, IP67, 100–277V AC. Supplied to car wash equipment distributors across the United States.

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ETL Listed
US & Canada commercial projects
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IP67 Rated
Chemical wash environments
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100–277V AC
Built-in driver, no transformer
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RGBW / Single Colour
DMX512 & RDM control
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US Market Supply
Distributed via equipment partners
Why Standard Fixtures Fail

Car Wash Is Not an Outdoor Application

The environment inside a car wash tunnel is fundamentally more aggressive than exterior architectural lighting. Three failure modes explain why generic outdoor LED fixtures consistently underperform.

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Chemical Attack on Seals

Car wash chemistry includes alkaline soaps (pH 9–12) and acid-based wheel cleaners (pH 1–3). These chemicals penetrate as mist across the full tunnel length, attacking seal materials and electrical connectors over time. A fixture that passes IP65 spray testing with clean water may fail within months in a chemical wash environment. IP67 with quality gasket sealing is the minimum specification for long-term reliability.

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High-Pressure Multi-Directional Water

Tunnel wash systems deliver water at high pressure simultaneously from above, the sides and below. Fixtures in the vehicle path receive direct sustained water impingement — not rain, not splash, but pressurised spray from multiple angles. During high-volume periods, water pools around base-mounted fixtures. This is the environment the IP67 immersion rating was designed to protect against.

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Thermal Cycling and Physical Impact

US car wash sites operate year-round from below-freezing to 40°C+. Cold vehicles entering the heated wash environment create rapid thermal cycling that fatigues gaskets and seals over time. Add occasional physical contact from roof racks and tall vehicles, and a robust extruded aluminium housing is not optional — it is the primary protection for the driver and LED array inside.

Products

Two Generations of Car Wash Light Bar

The LWW-ROWS-W150 is the proven production model with active US market deployment. The LWW-PZT-W75 is the next-generation replacement, launching shortly.

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Current Model · In Production
LWW-ROWS-W150
150mm wide · Up to 244W · 6FT max · ETL listed
Available Lengths2 / 3 / 4 / 5 / 6 FT
Max Power244W (6FT)
Input Voltage100–277V AC
IP RatingIP67
Housing Width150mm
ColourRGBW / Single colour
ControlDMX512 / RDM
ConnectorQuick-connect
Temp Range-20°C to +40°C
CertificationETL Listed
Request Quote →
Next GenerationComing Soon
LWW-PZT-W75
75mm wide · Slimmer profile · Same power · ETL listed
Available LengthsTBC
Max PowerTBC
Input Voltage100–277V AC
IP RatingIP67
Housing Width75mm
ColourRGBW / Single colour
ControlDMX512 / RDM
ConnectorQuick-connect
Temp Range-20°C to +40°C
CertificationETL Listed
Pre-Launch Enquiry →
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Installations

US Car Wash Sites in Operation

TPK LWW-ROWS-W150 light bars deployed across express tunnel wash sites in the United States, distributed through a major US car wash equipment partner.

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Express Tunnel · USA
Full RGBW Colour Programme — Tunnel Installation

Complete colour show sequence synced to wash cycle stages. LWW-ROWS-W150 in standard single-row arch configuration.

Read case study →
Express Tunnel · USA
Dual & Triple-Row Stacked Configuration

High-intensity RGBW installation using stacked dual and triple-row light bars per arch for maximum colour saturation.

Read case study →
Express Tunnel · USA
Express Wash — Live Colour Operation

Live wash cycle footage showing multi-zone colour sequencing across arches during peak operation.

Read case study →
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Technical Guides

Everything You Need to Specify and Install

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Application Guide
Car Wash Tunnel Lighting — Why US Operators Choose High-Power RGBW LED Light Bars
The commercial logic behind RGBW colour systems, IP67 in chemical environments, wattage selection and installation overview.
8 min →
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Technical Guide · Coming Soon
IP67 in Car Wash Environments — What the Rating Actually Means Under Chemical Wash Conditions
Deep dive into why IP65 fails in car wash tunnels, how TPK tests IP67 with hot immersion and powered submersion, and what to verify when buying.
6 min →
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Engineering Guide · Coming Soon
How to Design a DMX Colour Programme for a Car Wash Tunnel — Scenes, Triggers and Addressing
DMX address allocation per arch, colour scene design tied to wash stages, RDM commissioning, standalone vs PLC-integrated control.
7 min →
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Business Guide · Coming Soon
Car Wash LED Lighting ROI — How RGBW Colour Increases Membership Conversion and Revenue Per Car
The revenue case for RGBW installation: upgrade conversion rates, membership retention, social media reach and how to calculate payback period.
6 min →
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FAQ

Common Questions

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IP67 minimum. Car wash environments combine high-pressure spray, alkaline and acid chemical mist, and potential pooling around fixtures — conditions that exceed what IP65 (jet-proof with clean water) was designed to handle. IP67 certifies dust-tight protection and 30-minute submersion to 1 metre, providing the protection margin needed in a chemical wash tunnel over a multi-year installation lifetime.
Yes, for commercial installations. ETL listing (Intertek) is required by insurance underwriters and local Authorities Having Jurisdiction (AHJ) across US states. It is functionally equivalent to UL listing and accepted nationwide. The TPK LWW-ROWS-W150 carries current ETL listing. Certificate number available on request.
RGBW tunnel lighting is a revenue tool. Each wash stage — foam, rainbow coat, ceramic wax, tyre shine — gets a distinct colour profile. The colour show makes the premium service package visible to the customer driving through, increasing upgrade conversion and membership retention. Operators who retrofit RGBW systems consistently report measurable revenue increases per car and stronger customer engagement.
No. The LWW-ROWS-W150 has a built-in driver and connects directly to 100–277V AC mains power. No external transformer or power supply box is required. Each fixture connects to the branch AC circuit, simplifying installation in existing facilities.
A typical 6-arch express tunnel uses 2–3 light bars per arch in dual or triple-row stacked configuration, totalling 12–18 units. Exact count depends on tunnel length, arch width and the intensity the operator requires. Contact TPK’s engineering team with your tunnel dimensions for a fixture count recommendation.
Yes. The LWW-ROWS-W150 includes built-in colour effects that run autonomously via the onboard button — no external controller required. For full scene programming tied to specific wash stages and synchronised across all arches, a DMX512 controller with RDM is required.
Any environment combining high humidity, water exposure, chemical contact and a need for high-output colour or white lighting: self-service car wash bays, road and pedestrian tunnels, industrial wash-down facilities, marina and boatyard lighting, indoor swimming pool enclosures, and high-output outdoor architectural facades. IP67 exceeds standard outdoor requirements.
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Ready to Specify or Order?

ETL certificate, IES file, product datasheet and quotation provided before any purchase commitment. Engineering team responds within 24 hours.

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