Purpose: Used to detect the mechanical strength of the lamp head <br><br>Usage: Gradually apply torque, slowly increase to the specified torque E27 and apply 3Nm
Purpose: to test the mechanical strength of lamp cap<br>Usage: gradually apply the torque and slowly increase it to the specified torque E27. Apply 3nm
Objective: To test the mechanical strength of lamp holder. Usage: gradually apply torque, and slowly increase to the specified torque E27 and apply 3Nm.