Seventy percent of LED modules used in channel letters are white, Ondracek says.
安瑞斯克说，用于槽型发光字中70%的LED模组都是白色的。
The second biggest use of LED modules is in ground-mounted signs, says Ondracek, whose company sells small LED modules manufactured by Samsung.
安瑞斯克说，LED模组的第二大用途是地面装配标识，他们公司主要销售三星制作的小型LED模组。
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