I can see in the pictures that some of electronic shelf label have a LED. Is it possible to use i
A: For RF soultion ,the digtial price tags with Led ligths . some customer choose those soution for pick-to- light applications.
    Of couse , we also have Pick -to-light tags ,  we called  warehousing electornic shelf labels or warehousing digtal price tags. we also can provide SDK and API interface for you . 
    The advantage of warehousing warehousing digtial price tags is fast refesh ,but high cost . Please send mail to us to get it :

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