3528 smd led module becomes more an more popular aroud the world as the cost goes down and the brightness goes up and the angle is up to 110 degree.The view angle is good for thin channel letter and light box.about the color temperature,China signage makers prefer cold white for channel letter.But we found that west europe advertising users prefer to natural white.It is really diffcult to offer exact same white 3528 smd led module for led module manufacturer.they can offer the same white 3528 led modules for every order.there is torelence about color.You should know that.Some led module suppliers shall keep record for his important clients.The brightness is about 7~11lumens for each 3528 smd led module.But The high quality of 3528 smd led module can reach 12~18 lumens.The high quality of 3528 smd led module is about 0.5 us dollar.But the regular 3528 led module is about 0.3 us dollar each piece.
