Star Headlight & Lantern 7400 Laser M - Manual (Page 5)

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Wiring Harness Replacement
All standard lightbar models are designed for 12VDC negative ground vehicles
only. Reverse polarity will cause serious damage to the lightbar and/or vehicle.
Contact the automotive dealer if there are any doubts about the polarity of your vehicle.
Mounting Instructions
Please review the separate Mounting Bracket manual that
is also enclosed with your bar for mounting instructions.
PLEASE NOTE: If you are using the existing wire harness supplied with the lightbar,
you may skip to the Electrical Connections section on page 4.
Standard Laser lightbars come with a 15-foot wiring harness. If the harness supplied with
the lightbar is not long enough for your application, Star recommends ordering the proper
cable of the desired length from the factory. Completely remove the pre-installed wire
harness and replace it with one that is the correct length.
• Star recommends direct wiring to the terminal block on the inside of the lightbar,
rather than making connections to the end of the wire that is supplied.
• This lightbar is designed so that when replacing the wire harness, no wire
connectors are needed and only a few common tools are necessary.
• Direct wiring allows the wire connections to the lightbar to be made in a clean and
dry environment, avoiding any problems that may arise due to weathering on
external connections.
• Wiring directly inside the lightbar reduces the number of connections. There is an
increase in voltage loss with the addition of each connection.
• Making connections to the
wires already provided is
an acceptable alternative,
as long as these
connections are
good electrical
connections and
are resistant
from weathering
effects.
1. To replace the wire harness(es)
you will need to access the inside
of the lightbar. Remove the endcaps
by removing the four screws from each
end and the screws that hold the top
extrusion on the lightbar (ex. 6 screws on a 46”
lightbar), and carefully lift the top off of the lightbar.