... Testing parameters: voltage, wattage, color temperature, luminous flux, luminous efficiency3. With different base: E27, E14, B15, B22, GU10, G9, It could ... test different lamps with different bases.4. Test steps: Keep the tested lamps light ... needed for your checking products quality.Product LED Lamp Tester, LED Light Tester and ENERGY SAVING LAMP tester with long life