Quick-install wiring guide, Wire harness wiring – Star Headlight & Lantern 7400 Laser M User Manual

Page 4

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I

t is the sole responsibility of the owner to ensure the lightbar is

mounted securely. Check your light every time you enter the
vehicle to ensure that it is mounted securely. The manufacturer
assumes no responsibility for the secure mounting of this light.

When mounting your lightbar, please be sure to keep any radio frequency
sensitive equipment at least 20” from the bar and power cable(s). This is
especially critical in lightbars utilizing strobes. Our strobe power supplies

have been designed to limit RFI emissions, but certain very sensitive
equipment may still be affected. Symptoms may include, but are not
limited to, sporadic operation and degraded performance. Star Headlight
& Lantern Co., Inc. cannot assume any responsibility for any radio
frequency induced malfunction or damage to any radios, sirens, lightbars,
or any other equipment mounted within 20” of a strobe lightbar. Any

antennae mounted in the proximity of the lightbar may cause your radio to
suffer the aforementioned results.

QUICK-INSTALL WIRING GUIDE

WIRE COLORS AND FUNCTIONS WILL VARY FROM HARNESS TO
HARNESS. PLEASE BE SURE TO CORRECTLY IDENTIFY YOUR
HARNESS AND USE THE CORRESPONDING TABLE. IN ADDITION, ALL
LIGHTBARS ARE SHIPPED WITH A WORKSHEET THAT IDENTIFIES THE
FUNCTION FOR EACH WIRE COLOR IN THAT SPECIFIC LIGHTBAR.

!

20-Wire Harness Wiring

(271RAZOR)

Blue

Driver Side Alley Light (Switched +12VDC Only)

White w/Blue

ICL Power (Intersection Clearing Lights) or Scene Lights

White w/Yellow

Front Corner (Controls any lights in the front corners other than ICL)

Orange w/Yellow

Front Enable (Turns on Front Facing M-Tech Plus™ Lights) *

Brown w/Yellow

Not Used or Optional Component

Red

Power (Connect to constant +12-24 VDC

)

Red w/Green

Passenger Side Pattern Select (Touch and release to +12-24 VDC to change patterns)

Purple

Optional - High/Low (Ground for low intensity)

Green w/Yellow

Front Center (Controls any lights in the front centers)

Red/Black

Driver Side Pattern Select (Touch and release to +12-24 VDC to change patterns)

White w/Brown

Alt. Front Center (Controls any alternate lights in the front centers)

Green w/Red

Rear Center (Controls any lights in the rear centers)

Brown w/Red

Not Used or Optional Component

Orange w/Red

Rear Enable (Turns on Rear Facing M-Tech Plus™ Lights) *

White w/Red

Synchronization (Used to synchronize two or more lights together)

Yellow w/Black

Alt. LED 1 (Controls any alternate LED lights)

White w/Black

Alt. LED 2 (Controls any additional alternate LED lights)

Gray

Passenger Alley (Switched +12VDC Only)

Black

Ground (Connect to the negative side of the battery)

Bare

Ground (Shield - Connect to a good chassis ground)

Please Note:

ONLY the M-Tech Plus heads are +12-24VDC. All other components are +12VDC only.

* -

The Front Enable and Rear Enable options are NOT available on Amber Value Lightbars.

-

The Red wire MUST be connected to +12VDC for the front and rear warning LEDs to operate. If you
are NOT utilizing a separate Front and Rear enable function, you may connect the Red wire, along
with the Front enable wire and Rear Enable wire to +12-24VDC through your On/Off switch. If you
ARE using a separate Front and Rear Enable function, connect the Red wire to constant +12-24VDC.
Please note: When the red POWER wire is connected to constant power the light will draw a small
current (20 mA). If your vehicle will be sitting for extended periods of time (i.e. more than a few
days), it is recommended all power wires be routed through an ignition switched power source.

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