Led Grow Light,MARS HYDRO Full Spectrum Grow Lights for Greenhouse Indoor Plants Veg and Flower,Growing Light Bulbs for Hydroponics (MarsII 1200 W) MarsHydro led grow lights are the gains of 8-year continuously research and testing, and its primary goal is quality control. The Mars II series are the most powerful and penetrating grow lights. The Mars II led grow lights with the full spectrum, it is good for indoor plants growing. Combining this series grow lights with the grow light hanger and grow tent can work better. All MarsHydro grow lights will be tested for 48 hours before packaging to decrease defective rate, and provide customers with good purchasing experience.