40" (1046mm) Single Row Viper Light Bar 36 x 3W/4 x 10W

Lightforce Viper 40 inch single row LED light bar
Lightforce 40 inch Single Row Viper Light Bar
Lightforce 40 inch Single Row Viper Light Bar - rear housing
Lightforce Single Row Viper Light Bar - left side mount detail
Lightforce Single Row Viper Light Bar - right side mount detail
Vehicle fitted with a Lightforce Viper 40 inch light bar
Vehicle fitted with a Lightforce Viper 40 inch light bar
Viper 40 inch single row photometric chart, 793 m at 1 lux
Lightforce Viper single row light bar exploded view
Load image into Gallery viewer, Lightforce Viper 40 inch single row LED light bar
Load image into Gallery viewer, Lightforce 40 inch Single Row Viper Light Bar
Load image into Gallery viewer, Lightforce 40 inch Single Row Viper Light Bar - rear housing
Load image into Gallery viewer, Lightforce Single Row Viper Light Bar - left side mount detail
Load image into Gallery viewer, Lightforce Single Row Viper Light Bar - right side mount detail
Load image into Gallery viewer, Vehicle fitted with a Lightforce Viper 40 inch light bar
Load image into Gallery viewer, Vehicle fitted with a Lightforce Viper 40 inch light bar
Load image into Gallery viewer, Viper 40 inch single row photometric chart, 793 m at 1 lux
Load image into Gallery viewer, Lightforce Viper single row light bar exploded view

Regular price $540.88

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Heaving with features to protect your investment. Endurance on the track matched with a screwless front bezel, for a lightweight slimline housing that keeps the factory look. 1,046 mm of bar, 1 lux at 793 m, and 9,115 effective lumens.

Like the 30 and 50 inch, the optics are mixed: 36 × 3 W wide LEDs with 4 × 10 W long-range LEDs in the centre, so you get spread across the full length and genuine throw down the middle.

Vehicle fitted with a Lightforce Viper 40 inch light bar

1 lux at 793 m

Viper 40 inch single row photometric chart, 793 m at 1 lux
Lightforce's published photometric chart. Unlike their driving lights, Viper bar figures are measured for a single light, not a pair.

What changed with the Viper generation

  • Up to 25% more distance than the previous Lightforce bars
  • Up to 25% slimmer and 25% lighter
  • SMART HARNESS included — with a built-in bridge rectifier for greater compatibility with modern vehicles, and an 8-pin switch connector for factory-style switch fitment
  • Bonus rear slide mounts supplied with every bar, on top of the stainless steel side brackets
  • Up to 40% more affordable than the previous range

That harness matters more than it sounds. Late-model utes pulse the high-beam feed rather than running it as clean DC, which upsets a lot of aftermarket bars. The bridge rectifier in the Smart Harness is what lets this one sit behind a factory circuit without flicker.

Vehicle fitted with a Lightforce Viper 40 inch light bar

Key features

  • SMART HARNESS with 8-pin switch connector for easy factory switch fitment
  • Osram Oslon LEDs for greater performance, contrast, and less driver fatigue
  • Durable AkzoNobel powder coat finish, tested to Australian Standard AS1580, for protection against UV and salt water
  • RF shielding technology reduces radio interference
  • Waterproof to 1 metre with a genuine Gore breather
  • Screwless front bezel, so the face stays clean and there is nothing to corrode
  • Lightweight slimline housing with stainless steel side brackets
  • Polycarbonate lens
Lightforce Viper single row light bar exploded view

In the box

  • 1 × Viper 40 inch single row LED light bar
  • Stainless steel side brackets and fixings
  • Rear slide mount brackets and fixings
  • 1 × full Smart wiring harness
  • 1 × Torx key
  • User instructions

Specifications

Length 1,046 mm (40 inch)
1 lux at 793 m (single light)
Effective lumens 9,115 lm
Raw lumens 21,228 lm
LEDs 36 × 3 W plus 4 × 10 W Osram Oslon
Current draw 12.3 A
Voltage 12 V / 24 V compatible
Colour temperature 5500 K
Ingress protection IP68, Gore breather
Weight 2,102 g
Warranty 3 years

Where this one sits in the range

Single row 6″ 256 m · 10″ 372 m · 20″ 562 m · 30″ 697 m · 40″ 793 m · 50″ 878 m
Dual row 10″ 454 m · 20″ 734 m · 30″ 896 m · 40″ 984 m · 50″ 1,065 m

Worth knowing: the 30 inch dual row reaches 896 m — further than this 40 inch single row — in 250 mm less bar. If roof or bar space is the constraint rather than budget, compare the two.

Optional accessories

  • LFMOUSESW — Lightforce Mouse Switch with 8-pin connector. The harness ends in an 8-pin plug, so unless you are wiring into a factory switch you will want this
  • SWADP4 — harness to single switch 8-pin adaptor
  • LFLBVUMKITS — universal roof mounts for single row bars
  • ATKITLBSSM / ATKITLBSEM — anti-theft kits for the single row slide and end mounts

Frequently asked questions

Is the harness included?
Yes. Every Viper bar ships with the full Smart wiring harness — unlike the Lightforce driving lights, where the loom is a separate purchase.

Do I need a switch as well?
The harness terminates in an 8-pin connector. If you are not plugging into a factory-style switch, add the Mouse Switch (LFMOUSESW) or the SWADP4 adaptor, otherwise there is nothing to turn it on with.

Are the mounts included or an extra?
Included. Every bar comes with both the stainless steel side brackets and the rear slide mounts. The mount SKUs we list separately are spares and anti-theft versions.

Will it fit on my roof rack?
At 1,046 mm it needs a good run of rack. The universal roof mount kit (LFLBVUMKITS) is the usual answer for mounting a single row bar on a platform rack.

Fitting

An LED lightbar must be wired in accordance with Warrant of Fitness rules. At 12.3 A this bar wants properly sized wiring and fusing, so if you are not sure, send us your rego and we will talk it through before you order.

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