Grow better, stronger plants with Feit Electric A19/GROW/LEDG2/BX Non-Dimmable LED Plant Grow Lights. These A19 LED Plant Grow bulbs are ideal for all phases of indoor plant growth including budding and flowering. They are rated for high-humidity use making them compatible with most hydroponic systems. These plant grow bulbs have a light intensity of 14.2 PAR/PPF and emit more light in the useful 449nm blue and 630nm red spectrum than regular white LED bulbs. The LEDs emit spectrum wavelengths and color for better photosynthetic response. The A19 LED Plant Grow Light offers low heat emission, low energy consumption, instant-on to full brightness, and an average life of 25,000 hours/22.8-years. Choose a dependable general-purpose grow light for your growing needs. Please note that this plant grow bulb is not for general-purpose lighting.