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Quick Overview

Bucket Style headlamps 3-pin H4 or Japanese 2-pin H7 (with P43t expander)

New Style P115W replaces the P115W-S

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P115W-S is now the same as New Style P115W.

You can select it here on this page as well. 


New Style P115W Unit is totally self-contained. There are no hidden boxes or switches. There are no wires to cut or splice. The New Style is is more compact and uses latest generation electronics. 

New Style P115W unit is designed for 3-pin H4 or a Japanese H7 2-pin style headlamps with p43t expander. It's 1.05" (26mm) round and 0.60" (15.3mm) thick. It does not require any additional room after it's plugged on the back of the bulb.

pathBlazer circuit modulates the hi-beam current - from 100% ON to about 17% OFF. This is accomplished by using a p-channel MOSFET, which is inherently safe. The MOSFET is designed to fail in the ON state. For additional safety, the circuits DO NOT utilize the lo-beam whatsoever!

Incandescent Halogen Headlight Bulbs:

For this Option: MAX power rating is 115 watts. DO NOT EXCEED! 

LED Headlight Bulbs:

For this Option: Special software program controls the modulation with PWM mode for a "softer" transition.

SELECT appropriate OPTION depending on the type of bulb. Options are not interchangeable!

Programmable Daylight Sensor

P115W comes with a detachable daylight sensor, which simply plugs into the pathBlazer. The daylight sensor functions as a switch; it stops modulation when it cannot see enough daylight. Since the internal circuitry is controlled by a microprocessor, it allows for customizable features. 

3-Click Programming: If you turn the high beam on and then turn the ignition on three times quickly, the sequence is interpreted as an active command to change the sensitivity. Current software version v.823A allows 8 linear steps between the high and low end. Older models have two settings only.

The daylight sensor has a low frequency filter to avoid false triggering. Please note that fluorescent lamps may not trigger the sensor - it needs constant incandescent light. 


pathBlazer uses a soft-switching technique. It throttles the current flow through the bulb filament, so that there's no "thermal shock" due to a sudden inrush of current, which can damage the bulb filament or shorten its life considerably. This is far superior than maintaining a small voltage! 

Select hi-beam to modulate - as long as there's sufficient daylight. If you enter a tunnel or if it gets dark, it will stop the modulation of the hi-beam and stay ON steady. Select lo-beam to end modulation.


DIY logo

Installation does not require any special tools. Everything needed to complete the job is in the product package.

Follow the steps described here and refer to the Installation Manual enclosed in the product package. 

Installation videos with standard bulbs and LED bulbs are viewable on our YouTube channel. Or you can search for them directly on YouTube.  



Click here for Installation Manual

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