Plantmax Bulb Sod 250W PX-LU250 Watt: 250W Initial Lumen: 29,000 Bulb Size: ET18 Avg Life: 24,000 hr Plantmax is your complete light source for indoor gardeners. Plantmax High Pressure Sodium with adjusted blue spectrum brings you the best yields in flowering and fruiting. Plantmax grow lamps bring you ultimate yields even in the middle of winter.