New! H4 Relay Kits with Headlight Modulator built in!

New! H4 Special 'Dual Beam' Relay Kit with both beams on in HI position.

Note About the 'Coupler Connection':

I'm now including two Posi-Locks PL1416 in each H4 Kit (except the special Dual Beam Kit). These will give you the option of either using the H4 Coupler plug or cutting it off and using the Posi-Locks to connect to the bike's headlight wiring. This connection is to trigger the relays from your bike's HI/LO switch. There are some pros and cons for each as I will note here:

Option 1 - H4 Coupler Plug:

PROS: Easier install, just plugs into your old H4 Socket. Easy to remove later if you sell the bike. Easy to reconnect the old H4 socket to the bulb if you have a problem with the Kit. Note: I have never had anyone whose bike had a problem with a Relay Kit. Install it carefully and it will be as rugged and reliable as any other part of your motorcycle.

CONS: Coupler/Socket combo makes a bulky unit you have to wrap and tie up somewhere safely. It's more difficult to fit inside a crowded headlight shell. Old headlight H4 socket must be taped up to avoid shorting exposed terminals.

Option 2 - Posi-Lock Connectors:

PROS: Removes the bulky coupler/socket unit. Avoids poor connections with an old corroded plug. Makes installing inside a headlight shell easier with less bulk. Avoids any potential shorting of old H4 socket terminals.

CONS: Requires cutting off bike's old H4 Socket. Not as easy to remove Kit later if you sell the bike.

My Recommendations: I believe that a Relay Kit should be a permanent part of your bike. I like neat and tidy installs and I don't like old plugs and possible bad connections. Installing Posi-Lock connectors instead of the H4 Coupler really cleans up the area around the back of the headlight. Posi-Locks can be used to re-attach your old H4 Socket and remove the Relay Kit if you want to return the bike to it's original configuration.

H4 Heavy Duty Single Headlight Relay Kits (Fairing mount option shown)

This Kit is available with short or longer bulb leads. The Fairing mount Kit shown above is for bikes with a fairing to mount the relays remotely from the headlight. The Shell mount Kit with shorter bulb leads is for bikes with a headlight shell to mount the relays inside.

Specifications:

Main leads 61" (155 cm)

Fairing option bulb leads 16" (40 cm) - allows the relays to be remotely mounted from the headlight

Shell option bulb leads 6" (20 cm) - allows the relays to be inside the headlight shell

Two heavy duty 20A Panasonic Relays with sockets

H4 Coupler to make installation easy by plugging into your stock headlight socket

Cooper-Bussman ATM Fuseholder with two 15A fuses and bullet connector to make running wires easy

6 cable ties to secure your Kit to your bike

Two Posi-Lock PL1416s to make a compact connection to your old bulb leads (optional)

Price $47.95

H4 Single Relay Kit Bulb Lead Length 16 in (40 cm) Fairing Mount 8 in (20 cm) Shell Mount

H4 Heavy Duty Single Headlight Relay Kits with Ceramic H4 Socket

This Kit is exactly the same as the H4 Single Headlight Relay Kit except that H4 Socket is super high temperature ceramic. (Fairing Mount Length Shown)

Price $49.95

H4 Single Relay Kit Ceramic Bulb Lead Length 16 in (40 cm) Fairing Mount 8 in (20 cm) Shell Mount

H4 Heavy Duty Single 'Dual Beam' Headlight Relay Kits (LO beam on with HI)

This Kit is exactly the same as the H4 Single Headlight Relay Kit with Ceramic Socket, except that ON HI BEAM, LO BEAM REMAINS ON. A small diode is placed at the H4 Coupler. Please be aware of possible over-heating with both beams on.

NOTE: Because this Kit has a diode built onto the H4 Coupler, you won't be able to cut the Coupler off and use Posi-Locks to connect as on other H4 Kits. No Posi-Locks come with this Kit.

This Kit is available with short or longer bulb leads. The Fairing mount Kit shown above is for bikes with a fairing to mount the relays remotely from the headlight. The Shell mount Kit with shorter bulb leads is for bikes with a headlight shell to mount the relays inside.

Price $52.95

H4 Single Dual Beam Relay Kit Bulb Lead Length 16 in (40 cm) Fairing Mount 8 in (20 cm) Shell Mount

H4 Single Headlight Weatherproof Relay Kit

This Kit is specially for bikes like the BMW R1100GS which has a tight fitting headlight housing cover. Also, this Kit is for bikes with a very small headlight shell. This Kit allows easy insertion of the bulb leads into the headlight shell. The Kit is shipped with bulb leads out of the socket and they are then plugged in after installing in the headlight housing. The relays can be mounted further back, either in the fairing or under the front of the fuel tank. The relays are shrink wrapped to keep out dirt and moisture.

Specifications:

Main leads 57" (145 cm)

Bulb leads 20" (50 cm)

No H4 Coupler

Price $49.95

H4 Single Weatherproof Relay Kit

H4 Single Positive Ground Headlight Relay Kit

This Kit is specially for older British and other makes which have a positive ground electrical system. This Kit is basically the same as the regular H4 Single Kit except the wire colors are reversed with red wiring for the ground circuits. Specially priced for British Bike enthusiasts!

Price $45.95

H4 Single Positive Ground Relay Kit

H4 Dual Headlight Relay Kit

This Kit is specially for bikes with dual H4 headlights.

Price $54.95

H4 Dual Relay Kit

H4 Headlight Relay Kits with Modulator

       H4 Dual Relay Kit with Modulator

These Kits integrate a headlight monitor with the H4 Headlight Relay Kits.

On the Dual Kit above you can see one way of mounting the modulator strapped to the relays with the large cable tie provided. You can also mount the modulator separately beside the relays as shown on the right.

Specifications:

Modulator is fully U.S. DOT compliant.

Modulator maximum current is 130 watts.

Modulator and relays can be mounted together

Light sensor turns off modulation when it gets dark or in a tunnel

High Beam only is modulated. Turn off modulation by switching to Low beam

Bulb leads 12" (30 cm) - relays to H4 Socket

Dual Kit - Bulb to Bulb length 15" (38 cm)

Price $99.95

H4 Single Modulator Relay Kit

Price $109.95

H4 Dual Modulator Relay Kit

About Headlight Modulators:

Basically a headlight modulator pulses your HI beam at about 4 times a second. It goes from about 18% to 100% power each flash, according to US DOT requirements. It has been determined that this frequency is the best for getting attention from drivers, and does not shorten bulb life.

The Light Sensor turns off the flashing when it get dark. You wouldn't want your HI beam flashing after dark, and neither does the law. You can adjust the level at which the modulator turns off by the positioning of the light sensor. The Light Sensor complies with the law, but most riders realize when it's getting too dark for the modulator and turn the modulator off manually by switching to LO beam.

The main thing is that cars will notice you coming. You will get less cars pulling out in front of you because they can't help but see you. It's true, they really don't see us on a bike. People also report they get less deer problems.

There are times when you don't want the headlight flashing; like sitting in stop and go traffic, or behind a car at the lights. You don't want to annoy anyone. As modulators become more and more common on the streets, there is less annoyance from car drivers, as they realize why we use them.

A Modulator is another tool in the toolbox to help keep us alive.

Other Notes:

Custom Kits: E-mail me for a custom kit with longer or shorter wires. There is a small extra charge for this. You might want to install the relays near the battery, or under the gas tank.

Fuses: Each kit normally comes with an inline fuse holder, as shown, near the battery terminal. This is not needed if you are connecting to a fuse panel. Please specify when ordering if you don't want an inline fuse holder. Instead of the fuse holder and M6 battery ring terminal, a factory crimped terminal of your choice will come on the kit for attaching to your fuse panel. There is no difference in price.

Why not pick up a few Posi-Locks and Posi-Taps with your Kit? Great for all wiring, even around the house!

And hey, we've got Powerlet stuff to keep you warm and power all your accessories.