T4 vs t5 temps

Q

Queef

Well-Known Member
Just like the title says does a t4 bulb run cooler than a t5 bulb given same length bulb. Ima be setting up a mini mother tent in my bloom room just wantd to keep temps down.
 
The 'T' designation on a fluorescent bulb is in reference to the shape of the bulb so 'tubular' in this case. The '5' or '4' designation is for the diameter of the bulb in 1/8" incriments so either 1/2" or 5/8" diameter. what you need to list are the watts. Generally, the higher the wattage, the higher the temps emmitted
 
Can't have light without heat....therfore

more light = more heat

size matters not, do or do not, there is no try. (Yoda)

SilverSerf
 
T4. 20.5" is 20watts
T5. 21" is 13watts
T8. 18" 15watts
Wanted to keep whole fixture under 24"With pin connectors. but i mean i can throw 2 t4 in place for 1 t8 bulb er pretty close. Just looking for input on what temps. be like
 
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