Walmart shelf labels will light up to guide shoppers, CNBC reports

Walmart’s digital shelf labels flash when shoppers tap them in the Walmart app, a feature called Shop to Light that has already been used 5 million times in pilot stores. Staff use Pick to Light to locate items for online orders and Stock to Light to identify new stock, with all three tools slated for every store by the holiday season. The labels, installed in over 4,300 stores, change prices centrally without collecting customer data or enabling personalized pricing.