This article explains how to install a floodlight by running new electrical wiring and mounting the light under the soffit. The light could be controlled by a standard on/off switch, however I choose to wire it into my Insteon home automation system for remote control.
The 150watt floodlight is a two-lamp kit that’s available at many hardware stores. The zinc alloy body is durable and weatherproof.
How to Install a Floodlight
The new floodlight will be mounted at the corner of the garage under the soffit by the cornice return. This corner placement allows the two lamps to cover both sides of the garage.
Plan the Electrical Wiring
Before drilling a hole in the soffit for your new floodlight, think about how you will run the new electrical wire and where the electrical connections will be made. Take a look at your existing household wiring and layout a plan on a paper. A simple drawing will go a long ways toward organizing your work and avoiding mistakes. To run the new electrical wire to the far end of the garage, I built a drywall access panel in the bedroom closet over the garage to gain access to the crawlspace behind the gable vent.
Soffit Electrical Wiring
- Measure and mark the soffit where the hole will be drilled for the NM 14/2 electrical wire. I centered the hole between the corner of the wall the fascia board.
- Drill a 3/4 inch hole in the plywood sheathing of the soffit with a wood spade drill bit.
- Push the yellow nylon fish tape up through the hole into the attic crawlspace. Do this with a helper because there’s some of trial and error to get the fish tape to pop out where you can grab hold of it inside the attic.
I’ve used both the round nylon and flat metal types of fish tape. Both work well. For long straight runs – especially across flat ceilings – stiff nylon rods are available that screw together in sections. For this job, I used Greenlee 100-Feet x 3/16-Inch Nylon Fish Tape:
Working in the attic crawlspace behind the bedroom closet (via my recently installed drywall access panel) the end of the fish tape was pulled out from behind the wall and is hanging free.
I’m doing several electrical jobs and bought a 250 roll of Romex 14/2 electrical cable.
In the attic crawlspace at the other end of the garage attic, about 20 feet of electrical wire is pulled off the roll and laid into the crawlspace to the reach the opposite corner of the garage. Take care not to kink the wire.
Fishing New Electrical Wire
The new electrical cable is overlapped with several inches of the fish tape and the two are duct taped together.
The fish tape and new wire for the floodlight are shown here duct taped together, ready for pulling from the attic to the outdoors.
This next task is easier if two people work together; one person in the attic feeding the wire and the other person is outside on the ladder pulling the fish tape. The person outside pulls the fish tape and hollers when a couple of feet are exposed.
Back in the attic, the new run of electrical cable is fastened to the wall with insulated NM wire staples as shown.
The floodlight is wired in How to Install a Floodlight – Part 2.
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