LED Flashlight,LED Reading Lamp, Hand Light,Emergency Light,Mosquito Killer Bat, Headlight

Light packaging

The core of light is very fragile, and directly exposed on the surface will directly affect their life, so LED LED core processors will generally encapsulated LED package also determines an optical structure, that is, emitted by the LED Adopted a package of light optical light path has changed. On the terms currently in use in some ways the most CREE plant 7090XR-E Series LED optics is not a very good criticism is that the metal ring. It has been the purpose of the metal ring is extra phosphor is excited to the yellow light emitted by masked. The metal ring also will be a light-emitting optical angle narrowed after. The light-emitting angle is small, half-power radiation angle is only 75 degrees, far less than the Lumileds company's LED's 120 degrees. CREE is now generally accepted reason is that it can be higher luminous efficiency, luminous efficiency, and everyone in the perfect spot on the final yield of the light-emitting degree of efficiency.

In addition to an optical light but also have provided a more important parameter is the luminous body size, the smaller the volume of light close to a point source, relatively speaking, easier to do on the secondary optics, the more perfect spot. Named as Lumileds Rebel released the LED, but the LED output of this section has been the issue. Similarly and more recently, Osram Golden Dragon Plus series released LED (later referred to as GDP), luminous efficiency can be more than CREE Q5 but much smaller package sizes. Only just released soon, is still a problem on the production, use this LED flashlight manufacturers are relatively small. This of course nothing is perfect and higher color temperature LED according to the user called, for a long time high temperature work, the possibility of color cast will appear, after all, is a new product, but also recognition of the time