... Testing parameters: voltage, wattage, color temperature, luminous flux, luminous efficiency3. With different base: E27, E14, B15, B22, GU10, G9, It ... . the test result will be showed after put testing switch down.5. testing time is only about 10 seconds. ... Only 15 minutes needed for your checking products quality.Product LED Lamp Tester, LED Light Tester and ENERGY SAVING LAMP tester with high quality