Premium Quality and Safety: Advanced semiconductor lighting technology, premium aluminum lamp body and good heat dissipation ensures long-term LED stability and controls the problem of light decay effectively. EVERYGROW's outdoor grow lights are UL certified, each of our grow light have undergone a stringent certification process to ensure maximum safety. Waterproof and Durable: One piece daisy chain design, trumpet shaped light bulbs, waterproof rubber covered switch to make our grow lights are fully waterproof. In addition, we reserved 2 small holes in the center of the bulb to avoid water vapor causing circuit problems inside the bulb. All these features make this plant grow light is perfectly suited for outdoor use. 380NM to 780NM Full-Spectrum Lighting: 400nm-700nm spectrum fuels photosynthesis, which drives plant growth and mass.380nm-780nm triggers photomorphogenesis, which drives plant development and structure. Each grow light bulb features a total o