Mars Hydro SP150 140W Full Spectrum Led Grow LightEfficient LED Grow Lights: SP150 mounts 322 pcs@120V (360 pcs@240V) diodes, consumes only 140w electrical power, but has matching PPF output with a 250w HPS light while saving 44% electricity. Adequate PPF Output: Emitting 261umol photons per second, SP150 promises 1. 8g w yield on average with 2. 0mol j PPE, increasing yields by 30% over HPS lights. Enhanced Blue Band In Spectrum: SP150 is a full spectrum LED grow light with enhanced blue wavelength,