- Air-Cooled Reflector
- Ampere
- Arc Tube
- Array
- Ballast
- Base Type
- BU
- Bulb Wall Temperature
- Candela
- Candlepower
- Candlepower Distribution Curve
- Capacitor
- Ceramic Metal Halide (CMH) Lamp
- COB
- Cold Start Time
- Color Temperature
- Compact Fluorescent (CFL) Bulb
- Conversion Bulb
- Correlated Color Temperature (CCT)
- CRI
- Discharge Lamp
- Electrodes
- Electromagnetic Interference (EMI)
- Electronic Ballast
- Far Red LED Grow Light
- Fixture
- Fluorescent Lamp
- Footcandle
- Frequency
- Full Spectrum
- Grow Cycle
- Grow Light
- Halogen Lamp
- Hertz
- HID (High Intensity Discharge) Lamp
- Hood
- Hor
- Hot Spot
- Hot Start Time
- HPS
- Ignitor
- Illuminance
- Incandescent Lamp
- Input Voltage
- Input Watts
- Intensity
- Kelvin Temperature (K)
- Kilowatt (kW)
- Kilowatt Hour (kWh)
- Lamp Life
- LED
- Light Bleaching
- Light Intensity
- Lumen
- Lumen Depreciation
- Lumens
- Luminaire
- Lux
- Mercury
- Mercury Vapor Lamps
- Metal Halide (MH) Lamp
- PAR (Photosynthetic Active Radiation)
- Parabolic Reflector
- Photoperiod
- Photosynthesis
- Phototropism
- Power Factor
- PPF (Photosynthetic Photon Flux)
- PPFD (Photosynthetic Photon Flux Density)
- Reflectivity
- Reflector
- Spectrum
- Specular Reflection
- T5, T8, and T12 Fluorescent Bulbs
- Transformer
- U (Universal)
- UV (Ultraviolet) Light
- UVB Light
- UVB Rays
- Variable Spectrum
- Watt (w)
- What is a Volt (V)?
- White LEDs
- Yield