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Product and Geographic Information
 12 Months Ended
Dec. 31, 2020
Segment Reporting [Abstract]  
Product and Geographic Information PRODUCT AND GEOGRAPHIC INFORMATION
 
We focus our efforts on the sale of LED lighting products, in particular our MMM and commercial tubular TLED lines of products and controls, into targeted vertical markets. Our products are sold primarily in the United States through a combination of direct sales employees, lighting agents, independent sales representatives and distributors. We currently operate in a single industry segment, developing and selling our LED lighting products and controls into the MMM and commercial markets.
The following table provides a breakdown of product net sales for the years indicated (in thousands): 
 Year ended December 31,
 20202019
Commercial products$5,404 $7,877 
MMM products11,424 4,828 
Total net sales$16,828 $12,705 
 
A geographic summary of net sales is as follows (in thousands): 
 For the year ended December 31,
 20202019
United States$16,685 $12,599 
International143 106 
Total net sales$16,828 $12,705 
At December 31, 2020 and 2019, approximately 100% of our long-lived assets, which consist of property and equipment, were located in the United States.