eBay 800W +/- 50V SMPS PSU, anyone tried this?

[shanghai2004]

Hi,

Saw this on eBay

800W High Power Amp Switching Power Supply Amplifier PSU 50V L153 31 | eBay

Anyone bought this? Any good?

Looks a bit small to be really 800W but even if it's 400W only in reality then the price still looks good.

 

[JMFahey]

Looks very nice for amp prototyping or even finished builds.

And "looks" alone can be deceiving, only way to test whether it's 800W or less, is by loading it.

 

[DUG]

Description:

This product uses the LLC resonant half-bridge topology, with high conversion efficiency, low interference, fast dynamic response, stable output voltage, etc., as well as integrated overcurrent, overvoltage, overtemperature, output short circuit protection,Is the best collocation of high-end power amplifier products. 200-800W power amplifier can be used, the 25-degree temperature continuous power 500W, peak power up to 1200W。

Input voltage: AC200-240V

Output voltage: Main voltage: DC±50V

Auxiliary voltage: DC± 12V and independent DC12V

Output current: ± 50V / 7.4A; ± 12V / 0.5A; 12V / 0.5A

Regulation accuracy: Main voltage no load ± 10%, with load ± 5%; , Auxiliary voltage/independent no load ± 15% with load ± 15% (at AC220V input, 400W load)

Continuous power: 400W-500W (at 25 ℃ ambient temperature of continuous work)

Maximum power: 800W (at 25 ℃ ambient temperature can work for about 5 minutes)

Instantaneous power: 1200W (dynamic signal generated when the impact of power, time of less than 100 milliseconds)

Conversion efficiency: Max 95%

Use of the environment: -10 ~ 40 ℃

Storage temperature: -30 ~ 85 ℃

Dimensions: 80 * 145 * 45mm (W*L*H)


I would call it 500W because of continuous rating.

 

[JMFahey]

So they type a nice big title to bait the hook ... and then downgrade it significantly within the text body.
Cheating cheapskates.