|
Advantages |
Disadvantages |
Halogen lamp |
Bright and stable light intensity |
Bright but unfocused, hot, short lifespan |
Xenon lamp |
Very bright, light focuses |
Need high voltage control, unstable light intensity, hot |
Laser light source |
Good homochromy property, extremely bright |
Less options (especially the low wavelength), expensive |
LED |
Bright, stable light intensity, easy control, cool light source, more options (various wavelength), can be maintained all life
|
No obvious defect |
The high brightness LED that has gotten breakthrough in recent years is features of being very bright, stable light intensity, focused, easy control, cool light source, easy to be copulated with the optical fiber, extremely long life (100,000 hours), and no obvious defect |