Professional Custom Lamp Holder Accessories Manufacturer

How to wire a light socket on the light fixture,  the project as below:

Customer: I am trying to change it. The fitting/fixture (what is the correct period?) however would not play nice: I can't understand the correct way to get rid of the old insert (and still have the capacity to insert the revolutionary one.
 

I'm not seeing any lamp holder, so it need to be some sort of attach thing. I'm not really too comfy applying excessive pressure towards plastic, as it may bend/break, before I do know I have the correct point to put my screw driver.

Answer: the way to wire a light socket, there are three wiring standard:
Live wire color shall be red, yellow, green
neutral wire (N) color must be black, blue
Ground wire (PE) color must be yellow, green, green color line.

In the face of the 3 hole light socket, left neutral, right live wire, middle ground
In the bus is provided with a leakage circuit breaker, with a bulb connected in the live wire and the neutral wire or live wire and the earth wire, such as earth leakage circuit breaker action, is the ground, otherwise it is neutral wire. Should pay attention to safety when testing may there will be a small spark, to have a heart to prepare, don't frighten jump!

If at home:keep electricity on, measured with a pencil, will light the live Wire ,it will switch at the neutral wire is disconnected, only through the line of fire, home lights play in the open position, measured with a pencil, just not bright, now lit the whole is the neutral wire 3, the remaining does not shine is full of ground of the most simple, take a 220V lighting, pencil were used to determine the line of fire, respectively, with two tree line and  live Wire connected with the lamp cap, from brightness to distinguish between neutral and. Light is neutral, slightly dark.