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Compact black plastic inverter with a 12V cigarette lighter plug, one three-prong AC outlet and a USB port

Westward

Westward 54DC41 Inverter 100W Modified Sine Wave

SKU CH-1J9Y-MRXR4

Converts 12V DC vehicle power to 115V AC with 100W continuous and 200W peak output, modified sine wave, one AC outlet and one USB port

  • 100 W continuous power runs small devices from a 12 V vehicle socket
  • 200 W peak capacity handles brief start-up surges for compact electronics
  • 80 % efficiency reduces battery drain during extended use
  • Standard 115 V AC outlet plus USB port charges multiple gadgets
  • Modified sine wave output suits basic resistive loads and simple power supplies

Westward 54DC41 100W Inverter

The Westward 54DC41 is a compact modified sine wave inverter that plugs into a 12V DC cigarette lighter socket. It delivers 100W continuous and 200W peak AC power through one standard 3-prong 115V outlet and a single USB-A port. The plastic case measures 5 1/2 in deep by 2 1/2 in wide by 1 7/8 in high.

Modified sine wave output limits

Modified sine wave form works for resistive loads and many switch-mode power supplies but can cause overheating or malfunction in sensitive electronics, medical devices or motor-driven appliances. The 57 to 63Hz frequency range and 80 percent efficiency are typical for this topology. Peak output of 200W is only momentary; sustained draw must stay at or below 100W.

Check vehicle socket rating

Before ordering, confirm that the vehicle's 12V DC accessory circuit and fuse can supply the inverter's input current without tripping. Verify that the devices you intend to power tolerate modified sine wave form and that their combined continuous draw does not exceed 100W. The single AC outlet and one USB-A port limit simultaneous connections.

Highlights

  • 100 W continuous power runs small devices from a 12 V vehicle socket
  • 200 W peak capacity handles brief start-up surges for compact electronics
  • 80 % efficiency reduces battery drain during extended use
  • Standard 115 V AC outlet plus USB port charges multiple gadgets
  • Modified sine wave output suits basic resistive loads and simple power supplies

Specifications

BrandWESTWARD

Questions about this item

Should I choose the 100 W or 200 W rating for my devices?

Use the 100 W continuous rating for sizing; the 200 W peak only covers brief start-up surges.

What does the 100 W continuous figure mean when the inverter is running in my vehicle?

It is the steady power available at the 115 V AC outlet and USB port combined, with 80 percent efficiency from the 12 V DC supply.

How does the 12 V cigarette-lighter input limit what I can actually draw?

The vehicle socket and wiring typically cap usable output below the inverter's 100 W rating, so high-draw loads may trip the fuse.

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