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Computer Controls



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Electronic & Parts

30 amp Max

With Box and FAN

Heavy Duty PWM

65 Amp PWM

No Relay Needed

35 Amp HD-PWM

Adjustable frequency



80 Amp PWM

Adjustable frequency and Remote turn on

1 Channel EFIE Deluxe

Get Better Gas Mileage

Assembled EFIE
Trick your O2 Sensor

Get Better Gas Mileage



2 Channel EFIE Deluxe

Works on most V 8s


Air-Fuel Ratio Gauge.

Fully Assembled

to Better Spark Plugs

Basic 30 Amp PWM

Two 80 amp mosfets



Here it is....
The all new 35 Amp HD-PWM
in a box with fan and
Free Shipping

This HD-PWM will meet the needs of most all single and double cells used for hydrogen boosting and is made to be superior to the popular 30 amp Max 066 PWM.


* New - Frequency adjustment...
   100 Hz fixed or 300-3,000 Hz adjustable
* New - More powerful output transistors
* New - 8 on board male spade connectors
   for better power transfer
* New - Larger heat sinks
* New - Wire re-enforced circuit board traces
* New - Larger mosfet pre driver
* New - Power LED
* New - Wide operating range 8-30 volts
   (fan is rated for 10-18 volts)

You are buying a new 35 Amp HD-PWM with Box Fan + knobs and a 30 day exchange warranty.
You will need to add a relay and wire. We recommend 10-12 gauge wire and it is best to use all 8 spade connectors.

With a Pulse Width Modulator, your HHO booster will run cooler and make more monoatomic hydrogen than just using direct current alone.  Monatomic hydrogen has a greater ability to increase fuel mileage than diatomic (REG) hydrogen.

If your cell makes 1 LPM at 17 amps with a PWM you can set the pulse width to 50%-60% and the current will be about 9-10 amps and still produce about the same volume of HHO but the HHO will be of a higher quality. If you want to use more current you can use a slightly stronger electrolight (Not more than 20%)

At this low current level, you can now run 2 cells on about the same amount of power you used to use with just 1 cell.



* Operating Voltage: 8-30 VDC
* Max current load: 30-35 amps RMS
* Peak current load: Over 50 amps
* Output type: Pulse Width Modulation
   (for controlling DC loads)
* Pulse Width: Adjustable from 0% to 100%
* Output frequency: 100 Hz fixed or 300 - 3,000 Hz adjustable.
* Box dimensions: aprox. 5 x 3 x 2.5

This unit is fully tested and ready to be installed Guaranteed No DOA
30 day warranty:

If this HD- PWM fails within 30 days we will replace it at no cost to you.
You will need to pay for shipping to us.
We will not replace the PWM if you connect the + and - wires backwards and burn out the reversing diode.
Free shipping is for the USA only
If you are not in the USA please send us E-mail


35 amp PWM with box and fan

Only $69.00
with free shipping in the USA

Lot of (3) 35 amp PWM's with box,fan and free shipping

Only $189.95


35 amp PWM with box, fan and World Wide Shipping

Only $84.95


Click for larger image



Shipping Time 1 week

This PWM will be shipped USPS with a tracking number.
If you are not in the USA, please call to place an order.

Note: When ordering you do not need to have a PayPal account
Shipping in the continental US is free
Just enter 0 for shipping charges



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