Magnetic mount lightbar for the Z930M

[nikdfish]

I just finished up doing warning flashers for the Z930M & figured I might as well do a lightbar. Unlike the flashers, the 120 watt lightbar will be run from a relay & a seperate, fused, battery connection. The switch controlling the relay will be supplied from the same key switched power source as the flashers so the key has to be "on" for the lightbar to be on.

I chose a 22" flood/spot combo lightbar with the intent of using a magnetic mount. The lightbar has a gentle curve. The magnets I used are some 36mmx7mm cup magnets with a claimed straight pull grip of 150lb. I'm using 3 on each mount.

I just finished a test fitting to check positioning and retention. It looks good so far, but I'm still going to do a bit of revision.

This is what the test fitting looked like. No electrical connections yet.

The magnet sid of the mounts.

Mount attachment to lightbar.

Placement, roughly centered & above the warning flashers.

Electrical connections still getting laid out.

 

[part-time-Farmer-NC]

Howdy Person Co neighbor... That looks pretty good there. I bet you could sell that as a solution!

 

[Roadworthy]

Before you go crazy buying relays and such power the light bar with a twelve volt battery through an ammeter. My 240 watt light bar would draw 20 amps if it were really 240 watts. Since it's LED it only draws five amps and no special wiring was required.

 

[nikdfish]

Before you go crazy buying relays and such power the light bar with a twelve volt battery through an ammeter. My 240 watt light bar would draw 20 amps if it were really 240 watts. Since it's LED it only draws five amps and no special wiring was required.

Yep, the actual draw @ 13.8v is only about 5.75 amps, maybe a bit more when all wiring is added. The thing is, I'm already using a formerly capped off switched power connector on the mower harness for the warning flashers. I don't know the current draw it was designed for (no label regarding the intended use on any diagram I've seen), but flashers draw so little it shouldn't matter. Adding the relay is cheap insurance that an additional 6 amps don't create an issue.