用钳形表测量电流，检查发热功率是否正常。
Use clamp ampere meter to measure the current and check if the heating power is normal.
电阻器为开启式，其额定发热功率为4。6KW。
The resistor is open type with rated heating power is 4.6KW.
然后重分析了LED发热功率和对流交换系数对LED结温的影响。
We also analyzed the relationship between the junction temperature with LED heat power and the convection coefficient.
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