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Total Raised


About TerraLUX

TerraLUX invents, designs, patents, manufactures and distributes high power LED lighting solutions for general lighting as well as industrial, commercial, medical and retail markets. TerraLUX produces LED Light Engines and Modules for OEM and Retrofit applications to replace traditional light sources in commercial and residential lighting as well as many popular flashlights and lighting tools. LED lighting is robust and energy efficient and can provide significant relief from current energy consumption. TerraLUX LED modules and LED light engine products, which include LEDSense thermal management circuitry, are easily integrated into almost any fixture. Low voltage modules also include Dynamic Transformer Recognition to simplify integration and enable smooth dimming from standard line voltage dimmers. The company has also has developed intellectual property in Solid State Lighting Technology. There are six issued patents covering thermal management, optics, and LED drive electronics.

TerraLUX Headquarters Location

1830 LeftHand Circle Suite B

Longmont, Colorado, 80501,

United States


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Research containing TerraLUX

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CB Insights Intelligence Analysts have mentioned TerraLUX in 1 CB Insights research brief, most recently on Jul 28, 2022.

Expert Collections containing TerraLUX

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TerraLUX is included in 1 Expert Collection, including Semiconductors, Chips, and Advanced Electronics.


Semiconductors, Chips, and Advanced Electronics

6,130 items

Companies in this collection develop everything from microprocessors to flash memory, integrated circuits specifically for quantum computing and artificial intelligence to OLED for displays, massive production fabs to circuit design firms, and everything in between.

TerraLUX Patents

TerraLUX has filed 72 patents.

The 3 most popular patent topics include:

  • Electric power conversion
  • Electrical engineering
  • Lighting
patents chart

Application Date

Grant Date


Related Topics




Lighting, Sensors, Gas discharge lamps, Architectural elements, Light sources


Application Date


Grant Date



Related Topics

Lighting, Sensors, Gas discharge lamps, Architectural elements, Light sources



Latest TerraLUX News

Out of cash, Longmont's Terralux shuts down and searches for buyer

Aug 16, 2017

Out of cash, Longmont's Terralux shuts down and searches for buyer By Shay Castle Posted:   08/15/2017 11:36:08 AM MDT Updated:   08/15/2017 06:01:14 PM MDT Senior Electrical Engineer Anthony McDougle looks over the "burn-in rack" after making adjustments to LED lights in the research and development lab at Terralux in Longmont on Feb. 6, 2016. The company shut down earlier this month. (Matthew Jonas / Staff Photographer) A fast-growing maker of LED and smart lighting doesn't have enough cash to keep its own lights on. Longmont-based Terralux, now known as Sielo, ceased all operations on Aug. 3 and is now looking for a buyer to get things running again. Chief Financial Officer Martin Lundie said Tuesday that the company is now in talks with potential acquirers. An announcement could be forthcoming within days, he said. "We're in the process of entertaining offers for the company to be acquired, we are continuing to satisfy orders and shipping product," Lundie said. "We really would like to maintain the jobs in the area." As of December 2016, the company employed 57 people, according to the Longmont Economic Development Partnership. Lundie declined to comment on current workforce numbers. Lundie said the shutdown was necessary because "there wasn't money to continue." He declined to answer further questions, citing ongoing negotiations. Calls to President and CEO Steve Hane and Director of Business Development Matthew Sallee were not returned. Emails to the executives returned a message that the two no longer were with the company as of Aug. 3, and included instructions to contact Lundie. Founded in 2003, Terralux changed its name to Sielo in May. It relocated from Gunbarrel to Longmont in 2010, and last year took over additional space at 1830 Lefthand Circle to accommodate its growing retrofit business. Advertisement At the time, Hane said Terralux was experiencing 70 percent annual growth and projecting revenue of $20 million for 2016. Its retrofit business, which became the company's focus in 2012, was the major driver, having grown by 200 percent in the past three years, according to Hane. Several large institutions tapped Terralux for lighting upgrades, including the University of Colorado, Colorado State University and Broomfield's public library. The company also recently unveiled expanded offerings to its LEDSense technology platform that connects smart devices such as lightbulbs and thermostats. The company has raised heavily from investors to fund the growth. In 2017, Terralux conducted two raises for a combined $7.6 million, according to filings with the Securities and Exchange Commission. That was on top of an $11 million raise in 2015 and a $4.5 million round in 2014. A fund chaired by former Vice President Al Gore, Generation Investment Management, participated in the $11 million round, which Pennsylvania-based EnerTech Capital led. EnerTech declined comment; GIM did not respond by press time. Lundie declined to disclose how much the company had raised to date. SEC filings dating back to 2010 show Terralux has raised north of $50 million.

  • Where is TerraLUX's headquarters?

    TerraLUX's headquarters is located at 1830 LeftHand Circle, Longmont.

  • What is TerraLUX's latest funding round?

    TerraLUX's latest funding round is Dead.

  • How much did TerraLUX raise?

    TerraLUX raised a total of $55.62M.

  • Who are the investors of TerraLUX?

    Investors of TerraLUX include Generation Investment Management, Emerald Technology Ventures, EnerTech Capital, GC&H Investments, Crawley Ventures and 4 more.

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