2:1 for leds...Why not for T-5?

[twintrades]

So if the ratio for Leds is 2 Blue to every 1 White. So why cant that apply to T-5 Lighting ? If i have a 6 bulb fixture then i should Be able to have 4 Actinic Bulbs and 2 10k.

Sound about right ? I know the thing to do would be 3 actinic and 3 white. But would 2-1 work ?

 

[-Logzor]

I would never run 50/50 white to blue with T-5. I run pretty much run 6-1 blue to white. It's more about personal preference.

 

[twintrades]

Ive run 3 super actinic And 3 Aquablue+ Had great growth.

I have 3 weeks till my LEDS get here. So im going to try a 2-1 Ratio actinic to 10k.

There old bulbs. And i have my old 10 k also if i need to switch them back in. Wish my Leds would be same day ordering and receiving lol

 

[Dave A]

10000K Doesn't mean the same for LEDs as it does for other types of lighting, while I would gladly use a 10000K MH or T5, a 10000LED is almost worthless. White LEDs have a narrow peak at 450nm and phosphors that convert some of that blue light to other colors. A 10000K LED offers only green and yellow light, wavelengths that do very little to support photosynthesis. The best comparison in a T5 would be a low-end 6500K/actinic 50/50, this is not something many T5 users would choose.
This explains the 2:1 ratio, a 4000K NW combined with 2 RBs will give the same color temperature (12000 to 14000K) but offer a much broader spectrum than a single RB and a 10000K CW.