LED lamp size generally have 6 inch, 5 inch, 4 inch, 3 inch, 2.5 inch, inch inch refers to here, refers to the inside of the reflection cup diameter.
Buy downlight, mainly look holes, we routinely say how many inches, refers to the opening.
2 inches is an oral language; the latter is the interpretation of excellent technical terms.Now many customers like to use inches instead of stiff numbers;Simple understanding;Inch downlight hole size in diameter of 90 70mm surface height of 100 OK.
LED lamp belongs to directional lighting, only its opposite to the light beam angle, belonging to the light, light is concentrated, contrasting. More prominent objects, higher lumen, but also set off a quiet atmosphere of the environment.
