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What is the meaning of LED bulb G4 and G9, and what is the difference?

G4 and G9 refer to the pin types of different types of bulbs (lamp beads)

2021-12-01 10:35:54

What is lumen? Comparison of LED lumens and conventional bulbs

Think of lumens as the "new" way to understand the brightness of a lamp. Lumens = light output.Simpl...

2021-04-10 17:03:13