 EUCLID, Ohio, March 25, 2021 GLOBE NEWSWIRE -- U.S. Lighting Group, Inc. OTC:USLG announced it had a phenomenal 2020 sales year and attributed the increase in revenue to its successful completion of several RD projects, resulting in increased purchase orders from OEM and private label customers, along with organic growth from its market share of automotive electronics branded products. Gross profit as a percentage of sales increased to 67 for the year ended December 31, 2020 with an improved gross margin and increased automation implemented during 2020, leading to reduced labor costs and improved supply chain management. 