... : 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(alumimum, 6.5Kgs only)7. With precise test data and competitive price.8. Only 15 minutes ... Lamp Tester, LED Light Tester and ENERGY SAVING LAMP tester with long life