Energy-saving and explosion-proof led lamp

An energy-saving and explosion-proof LED lamp, comprising:

• a lamp socket including a housing chamber, two electrode apertures in a center of the housing chamber, and a jutting coupling portion at a bottom thereof that includes a housing compartment with an opening facing downward, the housing compartment holding a washer assembly inside;
• an LED element including an LED substrate fixedly held in the housing chamber and a cable which is held in the housing compartment and runs through a center of the washer assembly and includes two electrode wires respectively running through the two electrode apertures to form electric connection with the LED substrate;
• a lamp shade which is made of tempered glass and is wedged in the housing chamber to encase the LED substrate and includes a jutting lens in a center and an annular end extended outwards from a perimeter of the lens;
• and
• a ring cap including a coupling opening corresponding to the lens and a press portion at a rim of the coupling opening to cover the annular end after the ring cap is coupled on the lamp socket.