CHF168.45
Powerwalker VI 2200 SHL Schuko 2200VA / 1200W Line-Interactive UPS Tower AVR HID LCD HID
2200 VA, 1200 W, Line-interactive UPS
Product ratings
Pros
Cons
16 reviews
Publicly dangerous
A little background: The manufacturer specifies a "Simulated Sine Wave" as output. However, this is not actually a sine wave, but a square wave (angular) with a few (usually 2) gradations (also angular). These gradations are relatively coarse. "Pure sine wave" devices also have gradations, but very small (>= 256 steps).
At the same time, active power factor correction (PFC) has been standard in power supplies for several years (because it is required by law from 75W nominal power).
The trick: with a PFC, the power supply tries not to pollute the assumed pure sine wave of the power grid. If absolute dirt comes in, an active PFC is simply overwhelmed and tends to shut down.
Various power supply manufacturers simply say: "Your problem".
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Quite funny: As a "line-interactive" UPS, the mains current is normally passed through, so there are no problems. Only when the mains power fails (and you really need the UPS) can devices suddenly switch off.
Due to the high frequency components and voltages at Square Waves, some (cheaper) power supplies can also suffer permanent damage. Often, however, the failures are rare enough that you never need the emergency power, and if you do, the runtime is short and the damage is small.
In short: suitable for small appliances (without PFC, passive PFC or sufficient reserves), but certainly not 1200W computer power supplies.
Why these unspeakable Square Wave shitty things are still legal, although power supplies that tolerate them have long been illegal, is beyond me. At the very least, Digitec should slap a big warning on it that there are no guarantees that the UPS will work in the event of a power failure and that the connected devices will survive.
The circuit board is also cheap, nothing comes of it. Shitty part.Pro
- Cheap
- Quiet in normal operation
Contra
- Cheap
- "Simulated Sine Wave": Not compatible with 99% of power supplies
- Sockets attached to extremely thin plastic - the housing bends when plugged in
Smells strong at first, but absolutely fulfils its purpose
Pro
- Works perfectly
- Favourable
Contra
- Smells horrible at first
- Smells fine even after a few weeks
- Smells a little even after months
Tip Top for the PC
Pro
- Cheap
- Much power
- High capacity
- Quiet in mains operation
- Also works as a room lifter
- Fast battery charging
- No driver installation with W11 necessary
Contra
- There should be a swiss plug version
- A bit noisy in save and stabilize mode.
Great ups for the price. Not tested @1200w. I have a 3d printer with a 400w bed and 60w hotend work
Pro
- Good power output
- Good battery capacity
- Screen to see power load and voltage
Contra
- Voltage variation
- "Noise in backup mode"
the beeping gets annoying after a while, otherwise it's good.
Super price-performance ratio, also suitable for recording studio use (quiet)
With 1000W power supply, AMD Ryzen 9 5900X, many other consumers like USB devices and SSDs, Radeon RX 6900 XT, 4K LD OLED, sound interface RME Fireface UFX - just 20% load, top!
Pro
- 80% delivered precharged
- Ready for use from approx. 90%
- Not to be heard unless under load (for recording studio)
- Sufficient power reserves
- Not too big, fits everywhere
- Display pleasant
- Walker Winpower Manager extensive
- 2 supplied cables for peripherals
6 out of 16 reviews
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