The HyperLed Sonlight PAR38 LED booster lamps with E27 plugs were specially developed for indoor cultivation. Thanks to the introduction of the new 3W LED and the 120 ° lens, the PAR38 LED booster covers a large area with high light output and absorbs the absolute minimum of energy. The LED advantages in indoor grow. - The LED enables high energy savings: the electricity bills should be between 40% and 75% lower than with a comparable HID or CFL system - The LED grow lights produce practically no heat. This means less investment, energy & amp; Thinking has to deal with heat extraction. Assuming your grow room is in your home environment, you are likely to keep the ambient temperature in the range of the ideal grow temperature. - The LED grow lights have no burn-through filament system and an expected lifespan of 50,000 hours: they are easy to install, no ballasts or reflectors need to be replaced. Versatile AGRO-LED spotlight The Sonlight PAR38 Agro Booster is an energy-saving compact spotlight that was developed to increase the growth and flowering phases of plants in hydrophone and indoor agriculture. The PAR38 Agro Booster is very versatile and can be used for two main purposes: As a supplementary lamp: In combination with other lamps, it can potentiate the lighting system and thus the end result without increasing the temperatures in the growing area. The LED lamps actually generate very little heat. As a main lamp: Due to its reduced size, the Sonlight PAR38 Agro Booster is perfect for main light in small grow boxes and in micro-cultivation (PC grow box) and ensures high light output and high performance with autoflowering plants.