Does not produce 60W @ 12V
342782
This is rated at 60W 12V. It should give you 60\12 = 5 Watts output.  On measuring the output, it only comes up to 2.65 Watts which is less that half of the stated power output.  The Voltage was pretty lose to 12V.  It is well built.  The housing is solid.  The output tail is rather short.  The input cable is generous.  Keeping the unit to avoid the hassle of returning, but will not buy again.
616438
Works well but my power supply shows the total power consumed by the light as 7.51 Watts (0.626 A @ 12V), the LEDs are probably using even less.  Having said that, it is serving the purpose I intended to use it for.
4968786
It's OK on battery power but for some reason the makers have used one of the most obscure electric sockets for external 12 volt input and as far as I can see no one on Earth supplies a 12 volt adapter for it, certainly not the maker.
4966455
It does not test 3.0V which is why I bought it. Should have been more clear regarding the limitations. Only tests: 1.5V and 9V. Bummer.
2512848
Charges ONLY from a 120 Volt source and won't charge from a vehicles 12 Volt port...that's a deal breaker.
4957149
When I tried to push 2000w through it, it did work, and it did go through the entire range of 0-2000 watts smoothly and gradually. After less than 5 minutes the heat sink de-soldered itself (and the voltage regulator with it) from the board. It may be fine for some applications, but a 2000w water heater is not one of them.
2745688
As others have mentioned, the stated capacity isn't realistic. Also, both the 12V and 5V outputs sag with current draw. I had hoped to use this to power a retropie box, but get an undervoltage warning when using it. Now I have to try a 12V to 5V converter and use the 12 output. Should work, but more expensive and less efficient than using the included 5V.
3467222
Delivers 15v as advertised, but CANNOT handle a 2A load at all. I have a 10 watt device, and this didn't even come close to providing enough power.
3940549
I don't know how Amazon comes up with 8000 watts, let's do the math.

AC output 120V @ 47AMPS = 6016
AC output 240V @ 23AMPS = 5520

What combination yields 8000 watts?  How come other sites have this listed as a 6000 watt generator, which is a lot more realistic!
3841684
the claimed 1500watt does not seem to be obtainable.. it seems to be a mislabeled 500watt unit.
1359096
It says 400W but don't be fooled its more like 360 watts. Misleading packaging makes for consumer mistakes. Which makes for a bad experience and a complete waste of time. I'm sure it works fine for that power range . I just thought I would be getting a power supply that was 400 watts not 400W.
1718394
1500 speced unit could not handle 1200W resistive test load, nor 450W computer system (continuous, not startup). Replaced with 1000W Sunforce Sine Wave Inverter. No issues now.
788838
I bought  this to backup a GW 8 channel camera system but it failed disappointed .Has a voltage surge never worked
4103268
Did not deliver the same power output for UK electrical, blender ran at  speed
2655692
SWR meter reported 4 watts output not 8 watts advertised. Returned unit.
3162543
Just sits at 11.7v out getting 12.4v in.
The screw potentiometer on the edge of the PCB does nothing.
Guess I got a defective unit, or it was poorly assembled, or poorly designed.
895358
Not 12 volt output at all!!
--- 11.1 volts with no current
--- 8.3 volts with 1.5A current
But has not broken down yet.