How the test T5 energy saving lamp
Basically, judging from the appearance of three points:
A phosphor coating facing the sun to see whether the uniform, and thus to infer whether the sophisticated manufacturing process.
2 through the holes to see whether work standards board, to infer the production standards.
3 to see the overall appearance, quality and general appearance are very high standards at least no glitches and other foreign matter. General tire with low quality is very rough, resulting in a very rough look at the appearance of lights
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