Lamp Start, Run-up Time and Flicker Test System

LSRF-3 Lamp Start, Run-up Time and Flicker Tester is equipped with a high-precision, high-speed CIE Class A photometric probe. With a maximum sampling rate of 100 kHz, it can capture transient changes in a light source’s output at high speed, enabling precise measurement of dynamic optical parameters such as flicker, start-up time, rise time, and light stabilization time. The LSRF‑3 can be integrated with integrating spheres or goniophotometers from LISUN or other manufacturers. It includes Microsoft-certified testing software (available in both Chinese and English) that automatically generates comprehensive test reports, making it an ideal solution for LED lighting manufacturers, producers of self-ballasted energy-saving lamps, and third-party testing laboratories.

Standards:

Specifications:

Test Function 1: Lamp Flicker Perfermance Test
Configuration Details: The LSRF-3 test unit can be integrated with LISUN’s LPCE-2/LPCE-3 (or other brands’) integrating sphere spectroradiometer systems, or with LISUN’s LSG series (or other brands’) goniophotometers (requires the optional CLAMP-LSRF dedicated test fixture). It operates via a standard AC power supply. Click here to preview a sample flicker test report.
Measurable Parameters: Pst-LM, Pst-V, flicker percentage, flicker index, SVM (Stroboscopic Visibility Measure), and other standard flicker metrics.
Compliance Standards: IEEE 1789, CIE TN 006, BASIC, ASSIST, CA CEC, and EU ErP flicker limit requirements.
Typical Applications: Routine factory quality control, product flicker performance screening, and basic flicker assessment for dimmable luminaires—suitable for internal quality inspections and fundamental compliance verification.

LSRF-3 Lamp Flicker Perfermance Test

Test Function 2: Lamp Flicker Perfermance Test + Lamp Start, Run-up and Stablization Time Test
Configuration Details: Building upon the setup for Function 1, this configuration incorporates an integrating sphere system (such as the LISUN LPCE-3 or an equivalent model from another brand) paired with a LISUN LSP-500VARC Pure Sine Wave AC Power Source (High Precision). (This setup is the standard configuration for LISUN’s LPCE-2 integrating sphere spectroradiometer test system and LSG series goniophotometers.)
Measurable Parameters: Includes all fundamental flicker parameters, plus dynamic start-up performance metrics such as luminaire start-up time, 10%–90% rise time, and light output stabilization time.
Standards Compliance: ENERGY STAR V2.1, SASO 2902, IEC 60969, (EU) 2019/2015, and (EU) 2019/2020.
Typical Applications: Certification testing for U.S. ENERGY STAR and Saudi SASO standards; design validation for lighting products; comprehensive compliance testing for mass-produced goods; suitable for the vast majority of standard export certification requirements.

LSRF-3 Lamp Start, Run-up and Stablization Time Test

Test Function 3: Lamp Flicker Perfermance Test + Lamp Start, Run-up and Stablization Time Test + Pst-LM(I) Flicker Test
Configuration Details: Builds upon the system used for Function 1 or Function 2 by integrating the specialized LSP-500VARC-Pst (IEC-Pst AC Power Source), no modifications to existing test hardware are required.
Measurable Parameters: Includes all standard flicker, start-up, rise, and stabilization time parameters; adds the core dynamic flicker metric—Pst-LM(I)—as specified in the IEC TR 61547-1:2020 standard for voltage fluctuation immunity, enabling comprehensive flicker assessment across both steady-state and dynamic conditions.
Standards Compliance: Fully covers all aforementioned standards, with a specific focus on meeting the requirements for flicker testing under voltage fluctuation immunity as per IEC TR 61547-1:2020.
Typical Applications: Third-party accredited testing laboratories, certification for high-end products exported to the EU, and EMC-related flicker immunity testing for luminaires—ensuring compliance with the industry’s most rigorous standards.

Light Pst LM and Pst LM (I) Flicker Test Principle in IEC TR 61547-1:2020

Programmable AC Power Signal Output when do Flicker Immunity Pst LM(I) test in IEC TR 61547-1:2020

LISUN LSRF-3 Lamp Start, Run-up Time and Flicker Test System – After-sales Frequently Asked Questions (FAQ)
LISUN LSRF-3 Lamp Start, Run-up Time and Flicker Test System were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN will be continue to update this pages and more FAQ can be found in this topic link. 

Lee Yanan

The product is very good, the service is very professional👍