HELLA 2031 Side Indicator Light LED 9 to 33V

HELLA 2031 Side Indicator Light LED 9 to 33V

ADR 6/00 Category 5 compliant LED supplementary side direction indicator with Ultra Wide Visibility Optics, impact-resistant polycarbonate lens, nylon base, and 5-year warranty, purpose-built for trucks, trailers, and heavy commercial vehicles requiring enhanced side indicator conspicuity across 9–33V electrical systems.

Product Overview

The HELLA 2031 is a premium LED supplementary side direction indicator designed to deliver ADR 6/00 Category 5 compliant side indicator illumination on trucks, trailers, semi-trailers, and heavy commercial vehicles. As a supplementary side indicator, the 2031 is mounted on the side of the vehicle to make indicating and turning manoeuvres visible to road users alongside and approaching from oblique angles, supplementing the primary rear and front indicator lamps. The defining feature of the 2031 is HELLA's UWVO (Ultra Wide Visibility Optics) technology, which significantly extends the horizontal visibility angle of the indicator beyond the standard forward-facing visibility cone of conventional side indicator lamps. This wide-angle optics performance is particularly valuable on long semi-trailers, B-trains, and rigid trucks where following drivers, cyclists, and adjacent traffic need clear and early visibility of indicator activation across a broad horizontal arc during lane changes and turning manoeuvres. The impact-resistant polycarbonate lens delivers greater resistance to stone strikes, road debris, and physical impacts than standard acrylic alternatives, suited to the exposed side panel environments of heavy transport vehicles at highway speeds. The nylon base provides robust impact and chemical resistance at the mounting point on trailer side rails and body panels. At 3.2W total power consumption and 0.3A at 12V, the 2031 operates at a fraction of the draw of incandescent side indicator alternatives, reducing electrical load on trailer and vehicle circuits. Sharing the same 140 x 65 x 32mm footprint and construction specification as the HELLA 2033 side marker, the 2031 integrates seamlessly into matched side lighting installations where both side marker and side indicator functions are required on the same vehicle. Fully sealed to IP67 and compatible with the full 9–33V range covering both 12V and 24V systems, HELLA's five-year warranty provides long-term confidence for fleet operators and trailer manufacturers.

Features & Benefits

UWVO Ultra Wide Visibility Optics: HELLA's Ultra Wide Visibility Optics technology significantly extends the horizontal visibility angle of the side indicator beyond the standard forward-facing cone of conventional lamps, improving conspicuity to adjacent traffic, cyclists, and road users approaching from oblique angles during lane changes and turning manoeuvres on heavy vehicles.

Supplementary Side Direction Indicator: Functions as a dedicated side-mounted supplementary indicator lamp, making turning and lane-change signals visible to road users positioned alongside and diagonally behind the vehicle where rear and front indicator lamps may not be visible, improving active safety on long-wheelbase trucks and trailers.

Impact-Resistant Polycarbonate Lens: The polycarbonate lens offers greater impact resistance than standard acrylic alternatives, providing superior protection against stone strikes, road debris, and physical knocks common in the side panel environments of heavy transport vehicles operating at highway speeds.

Nylon Base Construction: Impact and chemical resistant nylon base provides robust protection at the mounting point, suited to the side rail and body panel environments of trailers and truck bodies subject to road debris, chemical washdowns, and physical contact.

ADR 6/00 Category 5 Compliant: Meets Australian Design Rule 6/00 Category 5 for supplementary side direction indicator lamps on heavy vehicles, confirming the 2031 is road-legal for side indicator applications on trucks and trailers operating on Australian public roads.

3.2W Efficient LED Operation: At just 3.2W total power consumption and 0.3A at 12V, the 2031 draws significantly less current than equivalent incandescent side indicator lamps, reducing electrical load on trailer and vehicle circuits and minimising heat generation at the lamp mounting point.

IP67 Sealed Construction: Fully dust-tight and protected against temporary water immersion, providing robust moisture and ingress protection for the exposed side panel environments typical of heavy transport operation.

Matched 140 x 65mm Footprint with HELLA 2033: Shares the same body dimensions and construction specification as the HELLA 2033 side marker light, enabling clean matched-pair installations where both side indicator and side marker functions are required on the same vehicle.

9–33V Universal Input: Compatible with both 12V and 24V heavy vehicle electrical systems in a single unit, eliminating the need for separate voltage variants across mixed fleets.

HELLA 5-Year Warranty: Backed by HELLA's five-year warranty, providing long-term confidence for fleet operators, trailer manufacturers, and transport companies specifying quality lighting for extended service life.

Technical Specs

Compatible With / Goes Well With

The HELLA 2031 is suited to any 12V or 24V truck, trailer, or heavy commercial vehicle requiring ADR-compliant LED supplementary side indicator lighting. Primary applications include semi-trailers and B-trains requiring wide-angle side indicator visibility, curtainsider and tautliner trailers, flatbed and drop-deck trailers, refrigerated and box body trailers, tipper bodies and tipping trailers, rigid trucks and bus bodies with long wheelbases, livestock trailers, car carriers, and heavy plant transport trailers where side indicator visibility to adjacent traffic is a road safety priority.

Pairs well with the HELLA 2033 red/amber side marker light as a matched-dimension side lighting pair, HELLA front marker packs including the 2051BULK and 2054BULK, 2026BULK cab marker pack, 2307BULK rear marker light, HELLA combination lamps including the 2430, 2431, and DuraLED COMBI-SR series for a complete matched HELLA truck and trailer lighting solution, trailer wiring looms and junction boxes, and waterproof cable connectors and heat-shrink terminals for professional side rail wiring installations.

Frequently Asked Questions

What is the difference between the HELLA 2031 side indicator and the HELLA 2033 side marker?

Both lamps share identical dimensions of 140 x 65 x 32mm, polycarbonate lens, nylon base, UWVO optics, IP67 rating, 3.2W power consumption, 9–33V input, and five-year warranty. The difference is their lighting function and ADR compliance. The 2031 is a supplementary side direction indicator compliant to ADR 6/00 Category 5, activating in sync with the vehicle's indicator circuit during turning and lane changes. The 2033 is a side marker light compliant to ADR 45/01, illuminating as a continuous side position and marker lamp. Both can be installed together as a matched pair for vehicles requiring both side indicator and side marker functions.

What does "supplementary side direction indicator" mean?

A supplementary side indicator is an additional indicator lamp mounted on the side of the vehicle to make turning and lane-change signals visible to road users positioned alongside and diagonally behind the vehicle, where the primary front and rear indicator lamps may not be clearly visible. On long-wheelbase trucks and semi-trailers, road users travelling adjacent to the vehicle — particularly cyclists, motorcyclists, and drivers in the blind spot zone — benefit significantly from a side-mounted indicator that activates in sync with the main indicators.

What does ADR 6/00 Category 5 compliance mean for side indicator lights?

ADR 6/00 is the Australian Design Rule governing direction indicator lamps on vehicles. Category 5 covers supplementary side direction indicators fitted to heavy vehicles. Compliance confirms the 2031 meets the legal requirements for side indicator lamp applications on trucks and trailers operating on Australian public roads, including prescribed flash rate, light output, colour, and visibility angles. Supplementary side indicators may be legally required on certain heavy vehicle types and configurations under applicable state and territory regulations.

What does UWVO Ultra Wide Visibility Optics mean in practice?

UWVO (Ultra Wide Visibility Optics) extends the horizontal visibility angle of the side indicator beyond the standard forward-facing cone of conventional side lamps. In practice, drivers in adjacent lanes, cyclists, and road users approaching from oblique angles alongside the vehicle can see the indicator activating across a significantly wider horizontal arc than a standard side indicator lamp. This is especially important on long semi-trailers and B-trains where the vehicle length creates extended blind zones alongside the vehicle during lane changes and turning manoeuvres.

Can the 2031 be used on both 12V and 24V trailer systems?

Yes. The 2031 operates across a 9–33V input range, making it fully compatible with both 12V light commercial vehicle electrical systems and standard 24V heavy truck and trailer systems. A single unit covers both voltage levels without modification, making it suitable for workshop and fleet environments managing mixed 12V and 24V trailer fleets.