Abstract-- LED demonstrates a number of benefits compared
to traditional incandescent lamps and fluorescent lamps.
However, the thermal problem that is brought by heat generated
within the LED itself is still a bottleneck that limits the stability,
reliability and lifetime of high power LED. In order to
understand the temperature characteristics of the LED lamp, this
paper utilized the thermocouples to measure the temperature on
LED lamp. The effects of the ambient temperature on the surface
temperature of the LED lamp were presented.