LED Light Bars  /  20 Inch

20 Inch LED Light Bars

The mid-size bar for truck bumpers, Jeep grilles and hoods, UTV racks and boat T-tops, in single row, double row, curved and white marine versions with bumper, grille and hood kits for popular trucks and Jeeps.

  • 26,400Raw lumens, double row
  • IP69KSealed housing
  • 12V / 24VPlug-and-play
  • LifetimeLimited Warranty
Shop 20 inch bars Kits for my vehicle
Black Oak LED 20 inch double row LED light bar with silver mounting brackets on wet gravel

Before you buy

Will it fit?Double row needs 22 in. bracket to bracket, single row 23-1/4 in. Most trucks: the lower bumper opening.Fit guideSingle or double row?Single row is slimmest. Double row puts out twice the raw lumens. Curved wraps the beam around the corners.CompareIs the wiring included?Yes. 12 ft harness, switch, relay and fuse, plus brackets and hardware.In the box
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20 Inch LED Light Bars | Lifetime Warranty | Pro Series 3.0

20 inch light bar guide

Fit, mounting and wiring for a 20 inch light bar

Everything buyers ask us before ordering a 20 inch bar, answered with the real measurements, the wiring diagram and the numbers from our spec sheets. The short version: measure the flat span, pick single row for tight spaces or double row for maximum output, and everything you need to wire it is in the box.

Single, double or curved?

Single row: slim 2-9/16 in. tall housing for grilles, roof racks and tight spots. 100W and 13,200 raw lumens on 5W LEDs.

Double row: two rows of LEDs in a taller straight housing for the most output from one bar. 200W and 26,400 raw lumens.

Curved double row: the same output in a subtle arc that follows a bumper and spreads light toward the corners.

20 inch LED light bar styles compared: single row, straight double row and curved double row
Illustration. Compare exact dimensions on each product page.

Will it fit?

Measure the flat span where the bar will sit, bracket to bracket. The 20 inch single row needs 23-1/4 in., the double row needs 22 in. and the curved double row needs 22-1/8 in. On most trucks that is the lower bumper opening; on Jeeps, the grille or hood; on UTVs, a roof rack crossbar; on boats, the T-top. The vehicle kits below are pre-fit to their model years.

20 inch single row LED light bar dimension drawing
20" single row: 23-1/4 in. wide with brackets, 21-7/8 in. housing, 2-9/16 in. tall, 3-1/4 in. deep.
20 inch double row LED light bar dimension drawing
20" double row: 22 in. wide with brackets, 21-1/2 in. housing, 4-1/8 in. tall with bracket, 3-1/2 in. deep.
20 inch curved double row LED light bar dimension drawing
20" curved double row: 22-1/8 in. wide with brackets, 21-5/8 in. housing, 4-1/8 in. tall with bracket, 3-11/16 in. deep.

How it mounts

Every bar bolts down with the stainless end brackets and hardware in the box. The bracket rotates so you can aim the beam after it is mounted. For tubes and rails, add a universal clamp bracket.

Lower bumperThe most common 20 inch truck install. Bumper kits cover F-250 / F-350, Silverado, Sierra, Ram 2500 / 3500 and older F-150s.
Grille or hoodJeep JK grille and hood kits and a TJ hood kit. The single row is only 2-9/16 in. tall for tight openings.
Roof rack or UTVBolt to the crossbar with the included brackets. A good size for side-by-sides and work trucks.
Boat T-top or hardtopMarine bars in white housing, IP69K sealed for saltwater and washdown. Aim forward for running, down for the deck.

What's in the box

Nothing else to buy for a standard install. You will need a drill, a pencil and zip ties.

  • 20 inch LED light bar with 16 in. lead and 2-pin Deutsch connector
  • 12 ft wiring harness
  • On/off rocker switch
  • Relay and inline fuse
  • 316 stainless end mounting brackets
  • All mounting hardware
  • Vehicle kits add the model-specific bracket

Wiring diagram

The harness is plug-and-play: connect the red lead to the battery positive, the black to the negative, run the switch into the cab and plug the bar into the Deutsch connector. The relay keeps the full load off your switch.

Download the quick start guide (PDF)

Light bar wiring diagram Battery positive runs through the inline 15A fuse to the relay. The in-cab on/off switch triggers the relay, and the relay powers the light bar through the 2-pin Deutsch connector. The relay and the light bar ground to the battery negative or a clean chassis ground. GROUND: battery negative or clean chassis ground BATTERY 12V or 24V +− 15A FUSE RELAY included ON/OFF SWITCH in cab, 3/4 in. hole trigger Deutsch 2-pin 20" LIGHT BAR Harness: 12 ft, fuse, relay and switch included Lead from bar: 16 in. to 2-pin Deutsch powergroundswitch trigger
Factory upfitter switchesWiring into a Ford, Ram or GM upfitter switch? Skip our relay and connect directly; the upfitter circuit already has one.
Keep it watertightUse heat-shrink butt connectors or solder sleeves on any splice. The Deutsch connector can be cut off if you need a custom run.
Route it cleanZip-tie the harness away from heat, sharp edges and moving parts. Mount the switch where you can reach it seated.

Brightness & beam

Figures are for our 5W LED builds, the brightest version of each bar. Combo optics put a 15° spot down the center for distance and 45° flood on the sides for width; spot and flood-only versions are available on the single row, double row and curved bars. 6,000K color temperature, rated for 50,000 hours.

20" double row, 200W
26,400 lm
20" curved double row, 200W
26,400 lm
20" single row, 100W
13,200 lm
LED light bar beam pattern guide comparing spot, flood and combo beam shapes
Illustrated beam shapes, not measured light output. Tap to enlarge.

20 inch light bar specs

5W LED builds. Every bar: IP69K sealed, 12V and 24V DC, 6,000K, 50,000-hour rated life, -40° to 145°F, OSRAM LEDs, Lifetime Limited Warranty.

Every number here is the 5 Watt build. It is our highest-output version and the one we recommend. Many bars also come in a lower-priced 3 Watt build; compare both on the product page.

BarWattageRaw lumensLEDsSize with bracketsWeight
20" single row100W13,2002023-1/4 x 2-9/16 x 3-1/4 in.4.6 lb
20" double row200W26,4004022 x 4-1/8 x 3-1/2 in.6.3 lb
20" curved double row200W26,4004022-1/8 x 4-1/8 x 3-11/16 in.6.3 lb
20" marine single row100W13,2002023-1/4 x 2-9/16 x 3-1/4 in.4 lb
20" marine curved double row200W26,4004022-1/8 x 4-1/8 x 3-11/16 in.6.3 lb

Kits for your vehicle

Bar and bracket in one order, pre-fit to the model years listed.

Ford F-150Double row bumper kit, 2006 to 2008Ford F-150 RaptorDouble row bumper kit, 2010 to 2014Ford F-250 / F-350Double row bumper kitsChevy Silverado 1500Single row and curved bumper kitsChevy Silverado 2500 / 3500Single row bumper kitGMC Sierra 1500Single row bumper kitGMC Sierra 2500 / 3500Single and double row bumper kitsRam 2500 / 3500Single row bumper kitJeep Wrangler JKDouble row grille and hood kitsJeep Wrangler TJDouble row hood kitBoatsBow and spreader kitAny other vehicleUniversal brackets and clamps

20 inch LED light bar questions

What is the brightest 20 inch light bar Black Oak makes?

The 20 inch double row and the 20 inch curved double row are the brightest, at 200W and 26,400 raw lumens on 5W LEDs. The 20 inch single row is 100W and 13,200 raw lumens.

Will a 20 inch light bar fit my vehicle?

Measure the flat span where the bar will sit, bracket to bracket. The 20 inch single row needs 23-1/4 in., the double row needs 22 in. and the curved double row needs 22-1/8 in. On most trucks that is the lower bumper opening; on Jeeps, the grille or hood; on UTVs, a roof rack crossbar; on boats, the T-top. The vehicle kits below are pre-fit to their model years.

Single row or double row?

Single row when height is the constraint (behind a grille, on a roof rack, under a boat T-top) or when you want the slimmest look. Double row when the position has room and you want the most output from one bar, twice the raw lumens of the single row. Curved double row when the bar sits on a bumper or roofline and you want the beam to wrap the corners.

Does a 20 inch light bar come with a wiring harness and switch?

Yes. Every 20 inch bar ships with a 12 foot harness that includes the on/off switch, relay and inline fuse, plus stainless brackets and mounting hardware. It plugs into the bar's 2-pin Deutsch connector and runs on 12V and 24V systems.

What is the difference between the marine and standard 20 inch bars?

Same LEDs and optics. The marine bars use a white powder-coated housing and are sold with marine mounting options; every bar is IP69K sealed for saltwater and pressure washdown.

What warranty comes with a 20 inch light bar?

Every 20 inch Black Oak LED light bar in this collection is covered by a Lifetime Limited Warranty. See each product page for the terms.

Other sizes: 10 inch light bars, 30 inch light bars, or every size and type in LED light bars. Designed and engineered in Sarasota, Florida.