OTC3634 Heavy-Duty Straight Cord Circuit Tester

Is the led bipolar ? I.e. does this work using the clamp on a positive power source to check for negative power with the probe?

Does anyone know what’s amperage this test light draws?

Is there a way to put a white light in this one and get rid of the red one?

What is the actual length and type of cord? Description says 12 foot coiled cord, then it says 5 foot straight cord...? Which is it?