The standard fluorescent bulb, commonly denoted T12, makes a decent grow light for houseplants, starting seeds, supplementing the natural light of a window, and other situations where lighting needs ...

certain high-voltage and low-voltage halogen lamps, and T12/T2 fluorescent lamps. The phase-out of T8 fluorescent lamps and halogen pins will begin two years later in September 2023. “The new ...