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LED LIGHTS
59235
4" SPOT
59237
6" SPOT/FLOOD
59236
4" SPOT/FLOOD
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back
of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep
this manual and the receipt in a safe and dry place for future reference. 23d
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright
©
2023 by Harbor Freight Tools
®
. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Page 2 For technical questions, please call 1-888-866-5797. Spot/Flood Light
Important Safety Information
Installation Precautions
1. For off-road use only.
2. Install on vehicles that will not
be used on public roads only.
3. Install only according to these
instructions. Improper installation
can create hazards.
4. Wear ANSI-approved safety goggles
and heavy-duty work gloves
during Installation.
5. Keep installation area clean and well lit.
6. Keep bystanders out of the
area during installation.
7. Do not install when tired or when under
the influence of drugs or medication.
8. Read all instructions and safety
precautions in the vehicle’s manual
onto which the Light will be installed.
9. Install on negative ground
12/24 VDC systems only.
10. Have a qualified technician
install the Light.
11. Keep wiring away from hot
surfaces and moving parts.
12. Do not install Light where it could
restrict sufficient airflow to the
radiator or obstruct the headlights
and/or turn signals of vehicle.
13. Do not look directly into lights;
doing so can cause eye damage.
Use Precautions
1. This product is not a toy. Do not
allow children to play with this item.
2. Use as intended only.
Not for marine use. Do not
mount underwater.
3. Inspect before every use; do not use
if parts are loose or damaged.
4. Do not place lights near anything
flammable after being used.
5. To prevent damage, turn lights off before
starting or turning off the vehicle.
6. This product may not meet D.O.T.
requirements for use on public
roads or highways. Follow local,
state, and federal regulations.
7. Turn off lights and allow them to
cool completely before handling.
8. Maintain product labels and
nameplates. These carry
important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
Specifications
Model 59235 59236 59237
Voltage 12/24
Size 4" 4" 6"
Number of Forward Facing LEDs 4 4 6
Wattage High Beam 95W 95W 121.2W
Wattage Low Beam 65W 65W 80.4W
Page 3For technical questions, please call 1-888-866-5797.Spot/Flood Light
Installation Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the
beginning of this document including all text under subheadings therein
before set up or use of this product.
1. Choose the mounting location on
the vehicle. If drilling is required
for the three mounting holes,
use the below template.
1.91
.95
.49
.27 2X
Caution: Mount to flat, stable location
with adequate clearance. If drilling is
required, beware of any hidden electrical
lines or cables. Do not damage or weaken
the structural integrity of the vehicle.
2. Attach bracket to mounting
surface. Do not fully tighten until
the Light has been aligned. Use:
a. One each M12 Screw,
M12 Spring Washer,
M12 Flat Washer, and M12 Nut.
b. Two each M6 x 30 Screws,
M6 Spring Washers,
M6 Flat Washers, and M6 Nuts.
M12 Nut
M12
Screw
M6 x 30 Screws
M12 Flat Washer
M12 Spring
Washer
M6 Flat Washer
M6 Spring
Washer
M6 Nut
Mounting Surface
3. Attach the Light to the bracket:
a. On 4" Light, use four each
M6 x 20 Screws, M6 Spring Washers
and M6 Flat Washers.
b. On 6" Light, use four each
M8 x 20 Screws, M8 Spring Washers
and M8 Flat Washers.
M8 Screw
M8 Spring
Washer
M8 Flat Washer
6" Light
M6 x 20 Screw
M6 Spring
Washer
M6 Flat Washer
4" Light
4. Align the Light and tighten
bracket screws.
5. Install a three position switch (sold
separately) inside the vehicle
cabin in a convenient location.
6. Drill or locate a mounting
hole for the relay.
7. Secure a relay (sold separately) to
the previously drilled hole using a
sheet metal screw (sold separately).
Note: Install relay with terminals facing
down and higher than the wiring. This
reduces the possibility of water entry.
CAUTION! Waterproof all
wiring connections.
Page 4 For technical questions, please call 1-888-866-5797. Spot/Flood Light
8. Disconnect the vehicle battery
cables, positive and negative.
9. Wire switch, relay, fuse (all sold
separately) and Light per Wiring
on page 4. Ensure all wiring
connections are secure.
WARNING! TO PREVENT SERIOUS
INJURY AND FIRE: Connect wires with
the correct polarity. There is reverse
polarity protection built-in to prevent
damage if incorrect polarity is used.
Notice: Use proper fuse with Light.
10. Use wire ties to secure the wires
to the vehicle and/or bundle
excess harness wire together.
11. CAUTION! Ensure the switch
is in the “off” position and then
re-attach the vehicle battery
cables, positive and negative.
12. Connect the 4-Pin Pigtail Connector
and Wires to the 4-Pin Socket on the
back of the Light. Ensure connection
between DT Plug and socket is secure.
Back of Light
4-Pin Socket
4-Pin Pigtail Connector
and Wires
DT Plug
Wiring
CAUTION! Do not power Pin 1 (Low Beam) and Pin 4 (High Beam)
at the same time as it will damage the circuit board.
1. Wire 4-Pin Pigtail Connector
wires to vehicle:
a. Red = Pin 1 Low Beam
b. Black = Pin 2 Ground
c. Yellow = Pin 3 Amber Backlight
d. White = Pin 4 High Beam
High Beam
Amber Backlight
Low Beam
Ground
High Beam
Amber Backlight
Ground
Not Used
High Beam
Not Used
Ground
Not Used
Light Connector
2. Use an appropriately rated three
position toggle switch (on/off/on, sold
separately). One position powers
low beam, the center is off, and the
opposite position powers high beam.
Note: When wiring a single
light use 14 gauge wire.
Note: When wiring two lights, use
12 gauge wire from power source
and 14 gauge from split junction.
8787a
30
85
86
PIN 3: BACKLIGHT
PIN 4: HIGH
PIN 2: GROUND
PIN 1: LOW
LIGHT CONNECTOR
GND
+12V
DPDT 3-WAY SWITCH
ON-OFF-ON
30A FUSE
RELAY
SPLICE INTO 12V SOURCE FOR
BACKLIGHT OR WIRE INTO
DEDICATED SWITCH
BATTERY
Page 5For technical questions, please call 1-888-866-5797.Spot/Flood Light
Maintenance
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the
beginning of this document including all text under subheadings therein
before set up or use of this product.
TO PREVENT SERIOUS INJURY OR DEATH FROM DRIVING HAZARDS:
Test operation of all lights before every use. Troubleshoot and repair
wiring properly before using. Do not use while trailer light operation
does not match vehicle light operation, if any lights do not light up, or
if any lights flicker. Park on level area away from traffic and set vehicle
parking brake/chock tires before diagnosing or servicing lights.
Cleaning, Maintenance, and Lubrication
1. BEFORE EACH USE, inspect the
general condition of the tool. Check for:
• loose hardware,
• misalignment or binding
of moving parts,
• cracked or broken parts,
• damaged electrical wiring, and
• any other condition that may
affect its safe operation.
2. AFTER USE, wipe external surfaces
of the tool with clean cloth.
Troubleshooting
Problem Possible Causes
Light does not light up. 1. Power switch is not in “On” position.
2. Wiring connections are loose.
3. Wiring is damaged.
4. Wires are not connected according to the correct polarity.
Follow all safety precautions whenever diagnosing or servicing the lights.
Park on level area away from traffic and set vehicle parking brake/chock tires.
Page 6 For technical questions, please call 1-888-866-5797. Spot/Flood Light
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST
AND INSTALLATION DIAGRAM IN THIS DOCUMENT AS A REFERENCE TOOL ONLY.
NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR
WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE
ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE
BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR
HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR
ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Parts Lists and Diagrams
59235 4" Spot Light and 59236 4″ Spot/Flood Light
Part Description Qty.
1 M6 x 20 Hex Screw 4
2 M6 Spring Washer 6
3 M6 Flat Washer 6
4 M6 Nut 2
5 M6 x 30 Hex Screw 2
6 M12 x 30 Hex Screw 1
7 M12 Spring Washer 1
Part Description Qty.
8 M12 Flat Washer 1
9 M12 Nut 1
10 Mounting Bracket 1
11 Black Cover 1
12 Amber Cover 1
13
4-Pin Pigtail Connector
(wires not shown)
1
14 Light Assembly 1
1
2
3
4
5 6
7
14
8
9
10
11
12
13
Page 7For technical questions, please call 1-888-866-5797.Spot/Flood Light
59237 6" Spot/Flood Light
Part Description Qty.
1 M8 x 20 Hex Screw 4
2 M8 Spring Washer 4
3 M8 Flat Washer 4
4 M6 Nut 2
5 M6 x 30 Hex Screw 2
6 M12 x 30 Hex Screw 1
7 M12 Spring Washer 1
8 M12 Flat Washer 1
Part Description Qty.
9 M12 Nut 1
10 Mounting Bracket 1
11 Black Cover 1
12 Amber Cover 1
13
4-Pin Pigtail Connector
(wires not shown)
1
14 M6 Spring Washer 2
15 M6 Flat Washer 2
16 Light Assembly 1
16
1 2
3 4
5
6
7
8
9 10
11
12
13
14 15
Record Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not available individually as
replacement parts. Parts may not be interchangeable. Specify UPC number when ordering parts:
4" Spot Light: 59235, UPC 193175462695
4" Spot/Flood Light: 59236, UPC 193175462701
6" Spot/Flood Light: 59237, UPC 193175462718
Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
and durability standards, and warrants to the original purchaser that this product is free from
defects in materials and workmanship for the period of 90 days from the date of purchase.
This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence
or accidents, repairs or alterations outside our facilities, criminal activity, improper installation,
normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,
injuries to persons or property, or for incidental, contingent, special or consequential damages
arising from the use of our product. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation of exclusion may not apply to you.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation
charges prepaid. Proof of purchase date and an explanation of the complaint must accompany
the merchandise. If our inspection verifies the defect, we will either repair or replace
the product at our election or we may elect to refund the purchase price if we cannot readily
and quickly provide you with a replacement. We will return repaired products at our expense,
but if we determine there is no defect, or that the defect resulted from causes not within
the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also
have other rights which vary from state to state.
26677 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797
