Wiring harness PURELUX Dualrelay 12V, DT-2
An easy solution for installing 1-2 auxiliary lights on can-bus controlled vehicles. A ready place for the XBB relay is integrated into the relay wiring harness, which also enables the connection of more powerful auxiliary lights (180W/pc) to the vehicle without having to make any changes to the wiring harness. Suitable for 12V current, max. current rating 360W (180W/connector).
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Product ratings
4.4
number of ratings 34- Good product. Works well. Fast connection. Added OBD extension cord. 2 output wires (DT-2) connected to same relay output (output1). Don't need to bu...Matic J 14.8.2025
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- Very good price-performance ratio, delivered quicklyJ H 19.11.2024
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- Danke, sehr gute Qualität, gerne wieder.Dietmar H 23.10.2026
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- Toimii kuin junan vessa helppo asentaa kun kaikki valmiinaAri N 19.10.2026
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- 5Atle T 8.10.2026
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- Meget dårlig kontakt med lysan og det blir overbelastet
Alexander K 6.10.2026
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Valostore: Hei Alexander! Det høres ikke helt bra ut! Ta gj... - Funker ikke på min biltypeN V 17.8.2026
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Valostore: Hei! Så kjedelig. Minner om at du kan kontakte os... - Sammen med XBB Powerunit og Dongle PERFEKTVidar G 25.3.2026
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- Toimiva ja nopea kytkentäJani H 27.1.2026
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- Pientä jumppaa softan kanssa mutta alko toimimaan kuten pitikin.Tomi S 18.12.2025
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Product Faq
An easy solution for installing 1-2 auxiliary lights on can-bus controlled vehicles. A ready place for the XBB relay is integrated into the relay wiring harness, which also enables the connection of more powerful auxiliary lights (180W/pc) to the vehicle without having to make any changes to the wiring harness. Suitable for 12V current, max. current rating 360W (180W/connector).
NOTE! The Purelux relay cable set is also suitable for connecting auxiliary lights other than Purelux. In our selection, you can also find wiring harnesses equipped with other usable connectors, and of course the connector can be removed from the wiring harness and the light can be connected directly to the wires.
Purelux Dualrelay relay wiring harness is an innovative and easy solution for installing auxiliary lights in CAN bus-controlled vehicles. The wiring harness features an integrated Plug & Play socket for the XBB relay, which, together with the XBB OBD Dongle, allows the control signal for the auxiliary lights to be obtained directly from the vehicle’s CAN bus. When the XBB relay is used on its own, the power of the connected lights is limited, which can be an issue with more powerful auxiliary lights. When the XBB relay is connected to the Dualrelay wiring harness, it instead sends the control signal to the wiring harness’s own relay. This makes it easy to connect more powerful auxiliary lights without making any modifications to the wiring harness.
The wiring harness is available with two, three, or four outputs and allows 1–4 auxiliary lights to be connected, depending on the selected model. In addition to the DT-2 connectors, the wiring harness features a separate wire powered by the XBB relay’s “Output 2” channel. This can be used, for example, to connect the position lights of the auxiliary lights by connecting the white wire directly to the position light wire of the auxiliary light. The wiring harness is designed for 12 V systems. The maximum permitted load of the wiring harness depends on the selected model.
Note! In addition to the wiring harness, you also need the XBB OBD Dongle & PowerUnit connection relay. On this page, you can buy either just the wiring harness or a complete set, which includes the aforementioned switching relay and control device in addition to the wiring harness. Choose the appropriate option from the product options.
Technical information 
- Product: Relay wiring kit Purelux Dualrelay 12V, DT-2
- Purpose: Connecting the car's auxiliary lights
- Operating voltage: 12V
- Max. power:
- 2-outputs: 360W (180W / output)
- 3-outputs: 468W (156W / output)
- 4-outputs: 576W (144W / output)
- Connector: DT-2
- 2-4 outputs
- Relay:
- 2 outputs: 40A
- 3-outputs: 60A
- 4 outputs: 80A
- Fuse:
- 2 outputs: 30A
- 3-outputs: 40A
- 4 outputs: 70A
- Dimensions:
- Length from light to relay: 225 cm
- Length from battery to relay: 54 cm
- Warranty: 12 months
| 2 output | 3 outputs | 4 outputs | |
| Max. current endurance | 360W (180W / connector) | 468W (156W / connector) | 576W (144W / connector) |
| Wire thickness (from battery to relay) | 12 AWG / 2.94 mm² | 10AWG / 4.75 mm² | 10AWG / 4.75 mm² |
| Wire thickness (from relay to light) | 16 AWG / 1.18 mm² | 16AWG / 1.18 mm² | 16AWG / 1.18 mm² |
| Fuse | 30A | 40A | 70A |
| Relay | 40A 12V | 60A 12V | 80A 12V |
The Purelux relay cable set is directly Plug & Play suitable for almost all additional lights using a DT2 connector.
