how to know if apple watch is fake|how to detect a fake apple watch This is how fast machines generate or use energy, or how fast connectors & wires transfer it. Frequently measured in Flux/tick. Real unit is watts (W) or joules-per-second (J/s). Voltage A meta-concept within the mod. Wiring devices are rated as low-voltage (LV), medium-voltage (MV), or high-voltage (HV) to indicate their power transfer limit. Subscribe