The Feit Electric 16-Watt PAR38 full spectrum LED grow light bulb features full spectrum light that mimics the natural sunlight and produces considerably less heat that retains moisture in plants while preventing lamp burn. Its full spectrum light nurtures plants during all stages of the plant's growth cycle. The versatile bulb emits precise wavelengths and color for superior photosynthetic response in the 454 nm blue spectrum preferred for vegetative growth and the 630nm red spectrum designed to promote budding and flowering. It contains a PAR/PPF value of 20.0 for optimum plant growth. The PAR38/GROW/LED/BX bulb emits 900 lumens, and the estimated energy cost is only $1.93 per-year. With an average life span of up to 25,000/22.8-years, this bulb lasts longer than traditional grow lights, saving you replacement costs and time. This LED grow light bulb has a 40° beam angle making it perfect for use in table lamps, pendants, or other open fixtures with medium E26 sockets. It is rated for high humidity use making it compatible with most hydroponic systems. This versatile grow light is also ideal for indoor gardening, organic growing, and hanging over plants. It is UL/CUL listed and FCC complaint. Get access to pesticide-free fruits and vegetables any time of the-year right at home with the Feit Electric full spectrum PAR38 LED grow light.