BG521516432 Because it comes with both 14 gauge and16 gauge wires. One set of wires are for the current load, “power going to the motors”. And the other set are signal wires. Which doesn’t need to carry heavy voltage. Keep in mind these ESCs do require soldering to a PCB or AIO. And be familiar with blheli and betaflight interfaces. Knowledge of these skills are required.

BG521516432 They have the ability to transmit telemetry signal but don’t expect it automatically. It does require a firmware update via BLheli32 which is an app that needs to be download onto ur computer for free. What setup are you installing it in? If you plan on using a flight controller? If so best way to do this is threw the blheli pass through via betaflight or Inav. Also free software needed to be downloaded, also free. and last your receiver also needs to carry telemetry capabilities.

BG521516432 Depends on the prop you buy. And the battery. I’ve tested these motors for 2 years. And still have them on one of my quads. I found with a heavy drone. (800 grams) I can get 5 min running pretty aggressively. Not full stick but close to 60-80%... 50% I get 6 min. I run a 1100mah battery with the dalprop 5045. A lot of ppl think that’s to steep of a prop...but I’ve tried 12 different tri-props. And 4 different Bi-props. Ranging from 5040 up to 5050 all different brands and now I just order those. Xing 1800kv is a hungry motor. It needs a slightly heavier prop to work right. Anything less then you might as well tape paper wings to it... anything more put lead props...