Power Adapter Buying Guide

AC to DC Power Converters Compared: 5A, 10A, and 15A

These plug into a household 110V-240V AC outlet and output regulated 12V DC through a cigarette-lighter socket — letting you run 12-volt accessories anywhere household power is available. The right one comes down to how much your device actually draws.

In this article
  • Standard Coleman thermoelectric coolers draw 5A or less — the 5A model covers them with no headroom to spare
  • 10A and 15A options give margin for higher-draw devices or future use
  • All three use the same cigarette-lighter-socket output
  • Check your device's actual amp draw before picking a converter
Quick Picks

Pick your amp rating

Wagan EL9903 (5A)
Wagan EL9903 Right-Sized for Coolers
5A / 60W
5A 60W ETL Listed
Matches standard Coleman thermoelectric cooler draw exactly. ETL listed.
12voltsplus.com
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Wagan EL9904 (10A)
Wagan EL9904 More Headroom
10A / 120W
10A 120W Genuine Wagan
Genuine Wagan, double the capacity of the 5A model.
12voltsplus.com
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VoolexGo (15A)
VoolexGo Most Capacity
15A / 180W
15A 180W Amazon Overall Pick
The most headroom of the three — best for higher-draw devices.
12voltsplus.com
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Side-by-side comparison
Compare all three converters
Right-Sized for Coolers
Wagan EL9903
More Headroom
Wagan EL9904
Most Capacity
VoolexGo
Wagan EL9903 (5A) Wagan EL9904 (10A) VoolexGo (15A)
Output 5A / 60W 10A / 120W 15A / 180W
Brand Wagan (genuine) Wagan (genuine) VoolexGo
Safety Certification ETL, TUV, CE, RCM Not listed CE, FCC, RoHS
Cigarette Lighter Socket Output Yes Yes Yes
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Frequently Asked Questions
Which one do I need for a Coleman thermoelectric cooler?

The Wagan EL9903 (5A/60W) — every Coleman thermoelectric cooler we carry draws 5A or less. Going bigger (10A or 15A) doesn’t hurt, but it’s unnecessary for this use.

Is it safe to use a higher-amp converter than I need?

Yes — the converter only supplies the current your device actually draws. Oversizing is safe; it’s undersizing that risks overheating or nuisance shutdowns.

Why does the EL9903 have a safety certification the others don't list?

The EL9903 and EL9904 are both genuine Wagan products, but only the EL9903 listing shows ETL/TUV/CE/RCM certification. The VoolexGo carries CE/FCC/RoHS instead — a different, less US/Canada-specific certification set.

Conclusion

Bottom line

Match the converter to your device’s amp draw. For standard Coleman thermoelectric coolers, the Wagan EL9903 (5A) is the right fit with no wasted capacity. Step up to the EL9904 (10A) or VoolexGo (15A) only if you’re powering something with a higher draw.

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