Product comparison · 2 power adapters & inverters

Dell 450-18871 power adapter/inverter Indoor vs Ewent EW3971 power adapter/inverter Indoor

Key differences

Purpose
- 450-18871 power adapter/inverter Indoor:Laptop
- EW3971 power adapter/inverter Indoor:Universal
Output power
- 450-18871 power adapter/inverter Indoor:30 W
- EW3971 power adapter/inverter Indoor:90 W

Differences highlightedShow differences only

Comparison of 450-18871, EW3971
21 specifications	A Dell 450-18871 power adapter/inverter Indoor Model 450-18871 View product	B Ewent EW3971 power adapter/inverter Indoor Model EW3971 View product
Features2 differ
PurposeDiffers	Laptop	Universal
Input voltageKnown for one	Unknown — not stated by the source	100-240 V
Input frequencyKnown for one	Unknown — not stated by the source	50/60 Hz
Output powerDiffers	30 W	90 W
Output voltageKnown for one	Unknown — not stated by the source	9.5 V
EfficiencyKnown for one	Unknown — not stated by the source	86%
Supplementary power connectorsKnown for one	Unknown — not stated by the source	8
Detachable power connectorsKnown for one	Unknown — not stated by the source	Yes
Power protection featuresKnown for one	Unknown — not stated by the source	Over current, Over voltage, Overheating, Short circuit
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	CE, RoHS, FCC
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	134 mm
DepthKnown for one	Unknown — not stated by the source	67 mm
HeightKnown for one	Unknown — not stated by the source	17.5 mm
WeightKnown for one	Unknown — not stated by the source	277 g
Cable lengthKnown for one	1 m	Unknown — not stated by the source
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	AC
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	85044090

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.