Samsung LM301H vs LM301B. Worth the price difference?

Building custom LED boards for a 4-tier rack system growing lettuce. The LM301H diodes are about 30% more expensive than the LM301B but claim higher efficiency. For leafy greens at around 200 PPFD per shelf, is the efficiency gain actually noticeable on the electricity bill? Or should I just go with the Bs and spend the savings on more shelves?