Product comparison · 2 power adapters & inverters

Ewent EW3964 power adapter/inverter Indoor vs Ewent EW3971 power adapter/inverter Indoor

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  • 17specifications compared
  • 8differ
  • 9identical
  • 3known for one product only

Key differences

  • Purpose
    • EW3964 power adapter/inverter Indoor:Laptop
    • EW3971 power adapter/inverter Indoor:Universal
  • Output power
    • EW3964 power adapter/inverter Indoor:40 W
    • EW3971 power adapter/inverter Indoor:90 W
  • Efficiency
    • EW3964 power adapter/inverter Indoor:85%
    • EW3971 power adapter/inverter Indoor:86%
  • Certification
    • EW3964 power adapter/inverter Indoor:CE. RoHS, FCC
    • EW3971 power adapter/inverter Indoor:CE, RoHS, FCC
  • Width
    • EW3964 power adapter/inverter Indoor:96 mm
    • EW3971 power adapter/inverter Indoor:134 mm
  • Depth
    • EW3964 power adapter/inverter Indoor:44 mm
    • EW3971 power adapter/inverter Indoor:67 mm
  • Height
    • EW3964 power adapter/inverter Indoor:29 mm
    • EW3971 power adapter/inverter Indoor:17.5 mm
  • Weight
    • EW3964 power adapter/inverter Indoor:226 g
    • EW3971 power adapter/inverter Indoor:277 g

Side by side

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Comparison of EW3964, EW3971
20 specifications
Features3 differ
PurposeDiffersLaptopUniversal
Power supply typeIndoorIndoor
Power current typeAC-to-DCAC-to-DC
Input voltage100-240 V100-240 V
Input frequency50/60 Hz50/60 Hz
Output powerDiffers40 W90 W
Output voltage9.5 V9.5 V
EfficiencyDiffers85%86%
Supplementary power connectors88
Detachable power connectorsYesYes
Power protection featuresOver current, Over voltage, Overheating, Short circuitOver current, Over voltage, Overheating, Short circuit
Designidentical
Product colourBlackBlack
Certificates1 differ
CertificationDiffersCE. RoHS, FCCCE, RoHS, FCC
Weight & dimensions4 differ
WidthDiffers96 mm134 mm
DepthDiffers44 mm67 mm
HeightDiffers29 mm17.5 mm
WeightDiffers226 g277 g
Packaging dataidentical
AC adapter includedKnown for oneUnknown — not stated by the sourceYes
Packaging contentidentical
Cables includedKnown for oneUnknown — not stated by the sourceAC
Logistics dataidentical
Harmonized System (HS) codeKnown for oneUnknown — not stated by the source85044090

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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