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Question:

How to test the value of the lumens by the double end of the LED lamp?

How to test the value of the lumens by the double end of the LED lamp?

Answer:

Power? Color temperature? How many tests do you have to PDF to show me

The light intensity and the curve will have a slight effect on the flux, the difference is very small

You can test it with the ball of the ball, it's just the Angle,I hope my answer will help you

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