Chapter I: light
Chapter I: light
The first is light, this can be said that the core components of a flashlight, the flashlight is essential to carry out by this distinction. Incandescent lamp, the light is too low. HID, we should start with the ballast and the need to preheat the volume is too large. Now the most attention and most can be accepted is based on the LED flashlight core. This basically is the future direction of development. Here we mainly discuss this is the LED flashlight.
Leave a CREE MC-E and XR-E images, pictures from the official website to download PDF CREE within the company
Luminous efficiency
Specifically, down light, light is the most important parameters of the luminous efficiency, and that is when the light through a fixed current, the light can be given to how much, of course, the higher the better luminous efficiency, the general light manufacturing companies will Marked light-emitting efficiency rating, since the choice to do high-end positioning, and that the natural components in the core will not relax, the higher the better the natural choice. Such as the distinction between the level of CREE is N3 N4 P2 P3 P4 Q2 Q3 Q4 Q5 R2 followed by increased luminous efficiency.
Many newcomers are generally asked P4 and Q5 What is the difference in the end such problems, the difference was simply a higher luminous efficiency Q5.
