What is the size LED downlight
The inches here are inches, not ancient measurements, inches, feet, rulers, etc.. 1 inches =25.4 mm =2.54 cm (1 inch = 2.54cm)So:4 inches =4 X 2.54=10.16cm. About 10cm = 100mm6 inches =6 X 2.54=15.24cm. About 15cm = 150mm8 inches =8 X 2.54=20.32cm. About 20cm = 200mm
Why are you so rigid?.Wrong wrong, can not Oh;"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.
Buy downlight, mainly look holes, we routinely say how many inches, refers to the opening.
2 inches is the opening size, Phi 90 x 100H, 90 is the diameter of the lamp, 100 is high
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.The commonly used standard size and parameters of LED downlight:2.5 inch LED lamp size parameters of hole (phi 80) - page table size Phi 102 * H30 power 3W;3 inch LED lamp size parameters of hole (phi 90) - page table size Phi 112 * H30 power 5W;3.5 inch LED lamp size parameters of hole (phi 100) - page table size Phi 122 * H30 power 7W;4 inch LED lamp size parameters of hole (phi 120) - page table size Phi 146 * H30 power 9W;5 inch LED lamp size parameters of hole (phi 150) - page table size Phi 180 * H30 power 12W;6 inch LED lamp size parameters of hole (phi 160) - page table size Phi 190 * H30 power 15W;LED downlight is a kind of embedded lighting ceiling light shooting style.
