SpikeSafe DC Current Sources

Vektrex SpikeSafe™ DC Current Sources provide reliable drive for LED/laser diode reliability, burn-in, IESNA LM-80 test, and other current-driven test applications. Models support currents up to 60A and max compliance voltages from 50V to 400V. All models feature individual channel control, precise current, and high power density — typically 6.4kW-8kW.

STARS (SpikeSafe Test and Reliability System) Software Application controls and manages up to 1024 individually controlled current source channels. In addition, the Control Panel Software Application provides an easy to use software interface.

Specifications Request Quote

What Current Do You Need?

Low CurrentMid-Low CurrentMid CurrentMid-High CurrentHigh Current

Modular, Scalable

SpikeSafe current sources are easily combined into systems with up to 1,024 current source channels in an electronics cabinet. Scalable, modular design enables easy system expansion for increased capacity. With a full range of SpikeSafe™ current source options, system components, chambers, fixturing, load board designs, cabling and software, Vektrex can provide the ideal testing solution for any size lab – large or small.

Vektrex DC Current Source System Configuration Options
Vektrex DC Current Source System Configuration Options


Vektrex’s easy-to-use SpikeSafe™ Test and Reliability Software (STARS) controls and monitors sources, loads, and thermal control devices during testing. With STARS, long-term reliability and burn-in tests can be automated and unattended. STARS supports independent source channel startup and shutdown, allowing multiple LED batch runs on a single system for optimized throughput. Stand-alone STARPLOT plotting software provides a graphic view of voltage, current and temperature data to quickly identify and illustrate trends.

Protects Devices

Vektrex’s patented SpikeSafe™ load protection continuously monitors voltage and current patterns and instantly shuts down when anomalies are detected. Rapid shutdown preserves the failed device for analysis, and it protects other devices in the circuit. The result is lower failure counts and improved reliability statistics.

Energy Efficiency

SpikeSafe current sources operate at 96% conversion efficiency. This high efficiency reduces electricity usage and it minimizes the heat released into the laboratory. In addition, the current sources’ high compliance voltage capability and SpikeSafe load protection allow many devices to be tested in one series circuit. This configuration is much more efficient than traditional single device circuits. The net result is lower annual operating cost and lower total cost of ownership.


  • Reliability Testing
  • Device Burn-in Test
  • HASS and LM-80 Applications
  • Energy Star Certification
  • Calibration Lamp Drive
  • DC Driven Lamps
  • Resistor Aging
  • Laser Diode DC Drive

Typical Devices Used with SpikeSafe DC Current Sources

  • Low, Mid and High-Power LEDs, Arrays, Modules, and Chip-On-Board (COB) devices
  • VCSEL, Quantum Cascade, Bar Lasers
  • Resistors
  • Rectifier Diodes
  • Halogen, Tungsten, FEL Lamps

Worldwide Installation Base

4 out of 5 major LED manufacturers standardize on SpikeSafe Current Sources.

Over 40% of LM-80 laboratories worldwide use SpikeSafe current sources to drive their LEDs, including labs in Germany, China, USA, Korea, Taiwan, Hong Kong, Malaysia.