Mikebeeny Yes, the outputs are floating, I use 2 power supplies in series to get a positive & negative output. I have removed the power supply earth to mains on the power in however to remove ground loops when testing amplifiers.

Mikebeeny China of course.

Mikebeeny You will need to zero the meter, probably on most clamp measurements. This is quite common. After you turn it on , it will have a random number on the display. Simply press the red button marked Z stoke F a couple of seconds till it bleeps and reads zero.

Mikebeeny No, the remote simply switches the lamp on or off and selects one of three colour temperatures. You can also change the lamp intensity.

Mikebeeny They need about 2 volts to light them, slightly different for different colours but they must have a series resistor to limit current. Lots of info on the internet showing values and how to calculate the correct value.