Could you give more detailed explanations about these LED advantages?

Yes. Currently available LEDs are more energy efficient than incandescent bulbs.
People can save money & energy by using LEDs instead of equivalent incandescent bulbs.

The rated average working life of LED is 50,000 hours compared with 1,000-3,000 hours of incandescent bulbs.
LEDs emit cold lights as working LEDs generate very small amount of heat, so LEDs are much safer than equivalent incandescent light bulbs in terms of danger of fire. LEDs don't have filaments to heat up in order to emit lights just like the case of incandescent bulbs. Lights are emitted from LEDs as a result of energy exchange occurring in the different semiconductor materials an LED is made of.

LEDs are usually shielded with solid transparent plastic materials so they are more rugged than incandescent and florescent bulbs that are usually shielded with glass.