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Product and Geographic Information
 12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Product and Geographic Information PRODUCT AND GEOGRAPHIC INFORMATION
We focus our efforts on the sale of LED lighting and controls products and UVCD products in the commercial market and MMM, and began to expand our offerings into the consumer market in the fourth quarter of 2021. Our products are sold primarily in the United States through a combination of direct sales employees, lighting agents, independent sales representatives and distributors, and via e-commerce with digital marketing strategies that profile our UVCD technologies. We currently operate in a single industry segment, developing and selling our LED lighting products and controls as well as UVCD products 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,
 20212020
Commercial products$4,682 $5,404 
MMM products5,183 11,424 
Total net sales$9,865 $16,828 
A geographic summary of net sales is as follows (in thousands):
 For the year ended December 31,
 20212020
United States$9,712 $16,685 
International153 143 
Total net sales$9,865 $16,828 
At December 31, 2021 and 2020, approximately 100% of our long-lived assets, which consist of property and equipment, were located in the United States.