Patent ID: 8304995

Claim:
A lamp, comprising: a luminous device comprising a lamp body; a heating device mounted at a top of the lamp body; a sensor switch module controlling on and off of the heating device; and a bracket comprising a shaft; wherein when the sensor switch module detects that an amount of snow/ice accumulated on the lamp body is beyond a set value, the sensor switch module controls the heating device to be switched on to melt the snow/ice; wherein the sensor switch module comprises a pressure switch and when a weight of the snow/ice accumulated on the lamp body is beyond a set weight, the sensor switch module controls the heating device to be switched on to melt the snow/ice and when the weight of the snow/ice accumulated on the lamp body decreases to be less than the set weight, the sensor switch module controls the heating device to be switch off to stop melting the snow/ice; and wherein the lamp body is pivotably engaged with the shaft of the bracket and comprises a luminous portion at a side of the shaft and a counterweight portion at an opposite of the shaft, the pressure switch colliding on a top of the counterweight portion and the snow/ice being accumulated on a top of the luminous portion.