Hello,The purpose for these LED's will be arrays for agriculture.The color I require is 670nm. 680nm would also be acceptable, but NOT 660nm.This is for agriculture, so the more intense the light, the better.The angle should be narrow.The light is focused for agricultural photosynthesis, and thus a narrow angle with high intensity is best.I will need 360 pieces first to make a prototype as soon as possible, and then I will need approx 1000~3000 pieces per month.ThanksCountry:USA
