What emissivity should I use for LED strips?

[HomeExperiement]

Hi!

I want to measure the heat of LEDs on my DIY LED panel with my infrared thermometer. That means that wrong emissivity could be like +/- 10 C in some cases. Should I take emissivity of white plastic which is 0.84 or are there any better options? Also does IR thermometer care if light from LEDs is shining while measuring?

 

[DaveE]

Calibrate with a thermocouple (or similar contact thermometer)? Or, put it in a temperature controlled oven and leave it long enough to equilibrate, then use you IR device to measure its known temperature.

 

[Baluncore]

I want to measure the heat ...

What is "the heat" ?
What is the LED colour, white, grow, or IR ?
Do you want to measure:
1. The temperature of the electrical components, and/or the enclosure ?
2. The power dissipated by the assembly ? (maybe use power = current * voltage)
3. The infrared light emitted ?

 

[HomeExperiement]

What is "the heat" ?
What is the LED colour, white, grow, or IR ?
Do you want to measure:
1. The temperature of the electrical components, and/or the enclosure ?
2. The power dissipated by the assembly ? (maybe use power = current * voltage)
3. The infrared light emitted ?

LED color is white (1800K).
Want to measure the temperature of components so that I can adjust voltage to low enough to avoid heat damage to LEDs.