What is the difference between t8 integration and external integration of fsl crystal oscillator?

FSL Foshan Lighting T8/765 Double-ended Fluorescent Lamp Color Temperature

White light 6500K yellow light 2700K k.

Suitable for entertainment lighting of signboard light boxes and square bars.

The D65 light source is daylight-like, and generally has a white color temperature of 6500K K.. The advantage is that the standard light source has no color cast.

It has a wide range of uses, for home and indoor lighting. Most light source boxes use D65 standard light source.

T8/765 can be regarded as a light source with three primary colors.

And D65 can be regarded as a 7-primary light source simulating sunlight.

Difference: T8/765 is a preheating cathode gas discharge lamp made of three kinds of rare earth phosphors, which emits light in blue-green-red band and is more suitable for color expression.

D65 means that the fluorescent powder on the tube wall emits light under electron bombardment, and its light color is closer to sunlight than T8/765, and its luminous efficiency is higher. This kind of lamp is more suitable for lighting.

They are essentially the same, but they use different coatings.