The Company was founded in 1985 as Fiberstars, Inc., a California corporation, and reincorporated in Delaware in November 2006. In May 2007, Fiberstars, Inc. merged with and became Energy Focus, Inc., also a Delaware corporation. Our principal executive offices are located at 32000 Aurora Road, Suite B, Solon, Ohio 44139. Our telephone number is 440.715.1300. Our website address is www.energyfocus.com. Information on our website is not part of this Annual Report.
Energy Focus, Inc. and its subsidiary engage in the design, development, manufacturing, marketing, and sale of energy-efficient lighting systems. We operate in a single industry segment, developing and selling our energy-efficient light-emitting diode ("LED") lighting products into the general commercial, industrial and military maritime markets. Our goal is to become a trusted leader in the LED lighting retrofit market by replacing fluorescent lamps in institutional buildings and high-intensity discharge ("HID") lighting in low-bay and high-bay applications with our innovative, high-quality commercial and military tubular LED ("TLED") products.
In 2018, we made significant strides in expanding and diversifying our new product portfolio. We introduced six new product families, including our commercial fixture family, our double-ended ballast bypass T8 and T5 high-output TLEDs, our Navy highbay retrofit kit, the Invisitube ultra-low EMI TLED and our dimmable industrial downlight. Our new products, including the RedCap emergency battery backup tube introduced in Q4 2017, have gained traction, with sales of new products introduced in the past two years increasing from less than one percent of total revenue in Q4 2017 to 17 percent in the fourth quarter of 2018, the highest new product revenue in the last two years. Our legacy military luminaire product line, including our flood, waterline security lights, globes and berth lights grew by over 90 percent from 2017 to 2018 and we saw some return of our military Intellitube® sales, as we achieved more competitive pricing through our cost reductions. During the year, we reduced the costs of eight legacy product families in order to price our products more competitively. Despite these efforts, the pricing of our legacy products remains at the high end of the competitive range and we expect aggressive price erosion to continue to be a headwind until our more innovative and differentiated new products ramp in volume.