watts

amperage

Electrical flow quantity

• voltageElectrical potential difference
• resistanceCapacity to withstand force
• currentDirected flow of charge

circuit · consumption · draw · load · output · input

lumens

Measure of visible light

• brightnessDegree of light emitted
• illuminationProvision of light
• LEDSemiconductor that glows

incandescent · fluorescent · halogen · CFL · bulb · lamp · dim · glow · filament · tungsten

horsepower

Rate of mechanical work

• engineMachine producing motion
• motorEnergy-to-motion converter
• torqueRotational force measurement

generator · turbine · dynamo · output · traction · drive · pump · compressor · industrial

heat

Transferred thermal energy

• radiantEmitting light or joy
• heaterDevice producing warmth
• radiatorHeat transfer device

baseboard · infrared · element · BTU · warming

amplifier

Signal-strengthening electronic device

• speakerOne who talks
• outputWhat something generates
• subwooferLow-frequency speaker unit

receiver · stereo · channel · impedance · gain · loudness · distortion · headroom · solid-state

• energyelectricity, power, oil, fuel, gas
• electricityelectricity, battery, batteries, wire, wires
• measurementscales, gauging, balance, metering, gram
• AC electricityAC, alternating current, hertz, sine wave, voltage
• Electrical Unitsampere, volt, coulomb, ohm, farad
• lighting specslumens, lux, candela, kelvins, color temperature