... curve and parameter, preheating time.4. Up to 1MHz Irms test content to every EB. 5. Analysis symmetry of high ... same time with in 1 minute. 8. Portable, can test, display, print without computer, test report includes data and curve, complywith international standard ... for PC, both English Version and Chinese version available. Test Interface Test Report Data WT5000/WT4000 electric ballast tester