Satco's 9-watt grow lamp is a full spectrum lamp, delivering wavelengths and colors essential for healthy plant growth. Engineered for all phases of indoor plant growth, from budding to flowering, these lamps are perfect for most hydroponic systems. Generating less heat than older technologies, this grow lamp delivers 15,000 hours of illumination.|Satco's S11440 9-watt grow lamp is a full spectrum lamp, delivering wavelengths and colors essential for healthy plant growth. Engineered for all phases of indoor plant growth, from budding to flowering, these lamps are perfect for most hydroponic systems. Generating less heat than older technologies, this grow lamp delivers 15,000 hours of illumination.