2021
MegaWatt®
Power Supplies
Built for HAM Radio, CB Radio, HF Radio, Shortwave Radio or a Linear Amplier
Also Great for LED Lighting
and as an RV Battery Charger
100 Amp 200 Amp 400 Amp or more
30 Amp 36 Amp and 50 Amp too
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This Is The MegaWatt® Website
Don't Get Stuck With An Offshore Clone
New Fan Circuit in the S-350-12 and S-400-12 Makes the Fan Run Almost Totaly Silent.
The S-700-12 Is Now 10bd Quieter
S-350-12
30 amps 33 amp peak
15.5 VDC
Adjustable Voltage on this unit is 9.5 to 15.5 VDC
Input 120/240 VAC
$50.00
S-400-12
36 amps 41 amp peak
15.5 VDC
Actual voltage adjustment on this unit is 9.5 to 15.5 VDC
Input 120/240 VAC
$60.00
S-700-12
50 amps continuous at 14 volts
Will run in parallel with as many units as you need for 100 amps or more.
Adjustable voltage 10-14 VDC Output 690 Watts
Input 120/240 VAC
$120.00
Four S-700-12s Running at 200 Amps 14 Volts
Purchase At The Bottom Of The Page
S-700-12: 100 Amps 200 Amps 400 Amps or more read here:
50 Amps Continuous at 10-14 Volts Heavy Duty DC Power Supply. Adjustable Voltage From 10 to 14 Volts DC Output 690 Watts. Great for 13.8 volt equipment, all MegaWatt Power Supplies are highly filtered and regulated. New 1/2 Volume Fan Circuit 10db Less Cooling Fan Air Noise.
The S-700-12 is modular. It will run In Parallel with other S-700-12s to produce any amperage you want. Two S-700-12s produce 100 amps continuous. You can run as many S-700-12s as you like for 100 amps 200 amps 300 amps or more.
Every time you add one it increases the output by 50 amps.
All our fans run full time to stop heat cycling which is the main cause of power supply circuit board failure. See videos for an example. All power supplies come with a grounded 110 volt power cord.
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Links to other website reveiews
S-350-12
S-400-12
S-700-12
Output S-700-12
These Power Supplies also have many other uses. The S-350-12 and S-400-12 work great as onboard battery chargers for RVs with one standard battery also cars and trucks. Keep your car battery fully charged and operate all your 12 volt equipment while parked. They will charge a low battery at full capacity and slowly ramp down the charge amperage to a 2 amp trickle charge as needed. Great for cars that are rarely driven.
They can be used to power LED lighting systems, RC Car, Airplane and Helicopter Mobile Battery Chargers in the house. They are widely used as LED Driver Power Supplies, Servo Control Power Supplies for CNC and Robotics or just prototyping and projects requiring 9.5 to 15.5 VDC power.
Both S-350-12 and S-400-12 power supply dimensions are 8 1/2in long X 4 5/8in wide X 2in tall .
The S-700-12 is 9.5in long X 5in wide X 2.75in tall .
All power supplies come with a grounded 120 volt power cord and instructions.
You DO NOT need a PayPal account to check out
How to check out using PayPal with or without a PayPal account or get a shipping quote. Paypal is all HTTPS protected.
1. Click the buy now button under the power supply picture, it may take a few seconds for PayPal the load.
2. Enter how many power supplies you wish to purchase and press continue.
3. If you don't have a PayPal account and don't want to get one please click the "pay with debit or credit card button"
4. Enter the appropriate information and click pay now.
For a shipping quote skip step four, pick your state or your country in the address field. Click the arrow by shipping method. This will give you the shipping price without actually making a purchase.
$12.00 shipping to the USA
for the S-350-12 or the S-400-12
$20.00 for the S-700-12
IIf you are purchasing large quantities check with us for a shipping quote.
To check shipping costs to other countries click the buy button and enter your country.
Privacy: All information exchanged or received on this website is 100% protected and is never shared without written permission.
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and also to
S-350-12 30 AMP 33 Amp Peak
9.5 to 15.5 Volts DC
UPC 683405633754
Orders over 10 units will not be processed without contacting us first about shipping
$50.00
S-400-12 36 Amp 41 Amp Peak 9.5 to 15.5 Volts DC
UPC 685256290230
Orders over 10 units will not be processed without contacting us first about shipping
$60.00
S-700-12 50 Amps Continuous Adjustable Voltage 10 - 14 VDC
UPC 703510623126
Orders over 10 units will not be processed without contacting us first about shipping
$120.00
MegaWatt vs Clone Test Video
Four MegaWatts 200 Amp Test Video
Owner: John Marles
MegaWatt Power Supplies
31700 Tick Canyon Rd
Agua Dulce, CA 91390
Free 1 to 3 Day Priority Shipping Upgrade on Every Purchase
We also have the:
33 Amp and 36 Amp Heavy Duty Power Supplies. - Adjustable 9.5 to over 15.5 Volts DC Output. Great for 13.8 Volt Equipment. Full Output is 15.5 Volts Not Just 12 Volts.
All payments are made on a fully secure HTTPS webpage
This is a demonstration only. Do not run your
S-700-12s over 14VDC while in parallel