Spectrolab

Updated 6 Jul 2026
Manufacturer United States Listed
15 Products
5 Services
70 Years Active
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About Spectrolab

Spectrolab, a wholly-owned subsidiary of Boeing, is the world's leading manufacturer of high-efficiency multi-junction solar cells and concentrator solar cells for spacecraft. Founded in 1956 and headquartered in Sylmar, California, Spectrolab has produced space solar cells that have powered more than 500 satellites and spacecraft.

The company's XTJ Prime and XTE+ multi-junction solar cells achieve efficiencies exceeding 30%, setting industry benchmarks for space photovoltaic power generation. Spectrolab also develops terrestrial concentrator photovoltaic (CPV) systems and Nightsun searchlights used by law enforcement and military aircraft worldwide.

Spectrolab's products power a wide range of missions from commercial geostationary satellites to planetary science spacecraft, including numerous NASA, ESA, and commercial operator platforms. The company holds numerous world records for solar cell efficiency and continues to advance III-V multi-junction technology for both space and ground-based applications.

Milestones

  • 1956 Founded in Sylmar, California
  • 2000 Acquired by Boeing
  • 2019 XTE+ multi-junction solar cell achieves >32% efficiency

Products

15

Dual-junction GaAs photovoltaic converter optimized for 810 nm laser light, achieving 50–55% conversion efficiency for power-over-fiber and laser power beaming applications.

2 7

Spectrolab's heritage 3J product, the XTJ Prime, offers 30.7% average BOL efficiency and is qualified under AIAA-S111 & AIAA-S112 standards.

2 3

Lattice-matched triple-junction (GaInP/GaAs/Ge) space solar cells reaching up to 32% efficiency, also offered as fully assembled space solar panels.

2

Telcordia-qualified InGaAs P-I-N photodetector device dies for telecom, laser power monitoring, and test systems, available in 25 µm to 1 mm active area sizes on 2", 3", and 4" InP wafers.

1 7

Spectrolab offers a variety of laser power convertors (LPC) optimized for maximum conversion of monochromatic laser light, including multijunction GaAs and metamorphic InGaAs PV convertors.

3 7

The Nightsun® SXP-10 is Spectrolab's latest and most advanced searchlight, building on over 50 years of high-intensity searchlight design and manufacturing heritage.

1 14
Flight-proven

Fully integrated and tested space solar arrays delivered to satellite primes for direct spacecraft integration, manufactured with Spectrolab's advanced multijunction cells and 70+ years of heritage.

2 5
Flight-proven

Fully assembled space solar panels built to customer specifications, integrating Spectrolab's multijunction solar cells for maximum EOL performance across all orbital environments.

2 4

Spectrolab's XTE High Fluence 32% BOL triple-junction solar cell for MEO and very high radiation environments exceeding 1e15 fluence, achieving 23.6% efficiency at 1e16 fluence.

1 18
Flight-proven

Spectrolab's triple-junction solar cell optimized for Low Intensity Low Temperature conditions, achieving 37% efficiency at Jupiter for deep space missions to outer planets.

1 7
Flight-proven

Spectrolab high-efficiency triple-junction solar cell optimized for low-intensity low-temperature (LILT) conditions, used on deep space missions including Juno and New Horizons.

4

Spectrolab's XTE Standard Fluence 32% BOL triple-junction solar cell for GEO and LEO missions up to 1e15 fluence, qualified under AIAA-S111-2014.

1 15

Spectrolab's latest 33% BOL efficiency triple-junction solar cell optimized for GEO and high-radiation missions (>1e14 fluence), fully qualified under AIAA-S111-2014.

1 17

Spectrolab's 33% BOL efficiency triple-junction solar cell optimized for LEO missions with lower radiation fluence (<1e14), achieving 30.6% efficiency at 1e14 fluence.

1 14
Flight-proven

Spectrolab's proven heritage triple-junction solar cell with 30.7% average BOL efficiency, dual-qualified under AIAA-S111 and AIAA-S112, available in sizes from 26 to 84 cm².

1 7

Additional Services

5
Testing & qualification
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Spectrolab provides environmental testing services, which are essential for qualifying products, especially those for space applications, against extreme conditions like temperature variations, vacuum, radiation, and vibration. This ensures the reliability and durability of components and systems in their intended operational…

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Engineering & analysis
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Spectrolab provides Engineering Services, which encompasses a broad range of technical support including design, analysis, and optimization. This service allows customers to leverage Spectrolab's deep expertise in areas like photovoltaics and high-intensity lighting to develop custom solutions, maximize performance, and…

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Manufacturing
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Spectrolab provides foundry services, indicating they can produce specialized components or devices for customers. This often involves using their manufacturing facilities and expertise to create custom parts, potentially including semiconductor fabrication or other specialized production processes.

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Spectrolab provides packaging services, which are crucial for protecting sensitive electronic components, such as solar cells or sensors, from environmental factors and for ensuring their proper integration into larger systems. This service likely includes the design and application of appropriate…

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