- Professional-grade Ceramic Metal Halide / Light Emitting Ceramic grow lamps, T12 Bulb Type, PGZX18 Base. Use only with Low-Frequency (Operating Frequency must be lower than 150 Hz) Square-Wave Digital/Electronic Ballast for corresponding wattage CMH bulb.
- Environmentally Safe: Eliminating the use of dangerous radiative element Kr(85) in regular CMH bulbs by utilizing Expluxs proprietary EcoTech Kr(85)-Free technology without reducing any performance.