Plant Growth Light Product Details:Powers: 640W / 660W / 720W / 960W Input voltage: AC100-277V 50/60HZ Dimming: 0-10V CRI: >80(white) Efficacy: 2.7-2.8μmol/J Photosynthetic photon flux: 1728-2690μmol/s PF: >0.9 Beam Angle: 120° Dimension: 1135x1100x65mm IP54 / Damp Location Product features:· Superior delivered PPF and PPFD exceeding up to 2000W HPS.· Flip-open design easy to open driver box, it is convenient to maintain and replace.· Foldable design easy installation and saving freight.· Mounting Height: 6”-24” depending on application.· Multigroup connection with dimming.· Heat sink with good heat dissapation.