Patent ID: 8066391

Claim:
A luminary comprising: a central lamp having a light-emitting end; an emergency lamp being ring-shaped, mounted around the light-emitting end of the central lamp and having a base being ring-shaped, attached to and surrounding the light-emitting end of the central lamp; and a circuit board being ring-shaped, mounted on the base and having a surface; an LED set being mounted on the surface and facing an identical direction with the light-emitting end of the central lamp; a cable set being connected to the LED set; and a malfunction-state light, a normal-state light, a charging-state light and a testing switch being mounted on the surface of the circuit board side by side and electrically connected to the cable set; and a control box being electrically connected to the cable set of the circuit board, adapted to connect to an AC power, having a battery, driving the LED set when an outage of the AC power occurs by using power of the battery, driving the charging-state light when charging the battery, driving the malfunction-state light when circuits of the control box fail and driving the normal-state light when the AC power is regularly supplied.