My current setup are cxb3590 3500k CD @1400mA so 160lm/w if I remember well and I want 20% more light to try to get 20% more weight so about 190lm/w! I am pretty sure the DB @700mA would provide me this efficiency but is there a cheaper way? Is any citizen COB can be this efficient? Or should I go with LM301B qb's? Jerry have nice kits but I am afraid of custom fees because of the weight! Have a lifted one