Tier 1 brand and OEM 275W Material: polycrystalline Silicon Max Power:275W Number of cells: 60(6*10)Pcs shipping: Support Express, Sea freight, Land freight, Air freight Lead Time: 7-15 DAYS Quantity(Watts) 1 - 10000 10001 - 1000000 1000001 - 10000000 >10000000 Est. Time(days) 7 14 23 Models can be customized