The AeroGarden Deluxe B 100340 Indoor Grow Light Bulb is a fluorescent tube designed for indoor gardening. With its white color and fluorescent lighting technology, this bulb is ideal for providing the necessary light for plants to thrive in hydroponic systems. Perfect for use in an AeroGarden or other indoor growing setups, this new bulb ensures that your plants receive the proper lighting they need to grow healthy and strong.