These are state-of-the-art, full-spectrum, energy-saving electronic compact fluorescent bulbs. They will fit into a wide variety of light fixtures such as table lamps, wall sconces & track lights. With their full spectrum & 6400K color temperature, they provide natural color that is comparable to sunlight. These bulbs are excellent for indoor growing applications & ensure proper development & maximum growth. This lamp emulates the sun without heat, so you don't have to worry about harming any of your plants.