Hello Aaron1989,
Use those
bulbs just like regular
fluorescent T8's. The 4000K, 5000k number is the spectrum itself. The lower the number the closer to the red spectrum it is, and the higher it is the closer to the blue spectrum it is. Blue spectrum mimics bright early summer light, red mimics lower late summer light. In nature the sun's spectrum of light is determined by the suns distance, and position in the sky. During early summer the sun is closer to the earth and higher in the sky. during late summer and fall the sun is farther away and lower in the sky. When the sun is lower in the sky, the sun's rays have to pass through more of the earths atmosphere. That changes the spectrum of light by the time it reaches the earths surface. That's why you get brilliant red sunsets when the sun goes down (especially during fall). That's the point when the sun's rays have to pass through the most atmosphere before it reaches the surface.
https://www.energystar.gov/products/...lbs/color_mood
As for the spread of light from those
led T'8's. Again, like I mentioned, use them just like regular fluorescent T8's. The coverage will be just about the same, and the actual throw (lumen drop off from distance), will be just about the same. Depending on the actual LED's and circuit boards, it might be slightly better than regular T8's, maybe even closer to fluorescent T5's if your lucky. But will be about the same.