Light bulb

A light bulb, comprising:

• a bulb holder;
• a base;
• a lampshade;
• and
• an LED bulb panel;
• wherein a lower end of the base is connected to the bulb holder;
• an upper end of the base is connected to the lampshade;
• the LED bulb panel is disposed on the base;
• a metal ring is sleeved on the lower end of the base;
• a first contact and a second contact are disposed on the bulb holder;
• a first light-emitting circuit and a second light-emitting circuit are disposed on the LED bulb panel;
• the metal ring is electrically connected to a first end of the first light-emitting circuit and a first end of the second light-emitting circuit;
• the first contact is electrically connected to a second end of the first light-emitting circuit, and the second contact is electrically connected to a second end of the second light-emitting circuit;
• the metal ring is electrically connected to the second contact and the first contact the first light-emitting circuit further comprises a first diode connected to the first contact the second light-emitting circuit further comprises a second diode connected to the second contact.