T5 LED bulbs

wil2279

Well-Known Member

• Sep 15, 2018

• #1

Ok so I have asked about these a little before but don't know if I ever got to talk to anyone who has used them. Apparently 35-45 watts per square foot of LED's is what is optimal in most cases. I have a 2' x2' high output t5 fixture that takes 8 bulbs... And I'm also doing 2'x2' scrogs. Why would 8 led bloom bulbs not be just about perfect for this? They are 21 watt bulbs which puts me at a very evenly spread out 42 watts per square foot.

 

Airwalker16

Well-Known Member

• Sep 16, 2018

• #2

T8 are much cheaper and more abundant.

 

Airwalker16

Well-Known Member

• Sep 16, 2018

• #3

4000K works REALLY well for veg.

 

Airwalker16

Well-Known Member

• Sep 16, 2018

• #4

Also, a 2' led T5 bulb may cost a bit more than 4foot. Burbs 2' X 2' Tube bulb fixture is bad Ass.

 

C

churchhaze

Well-Known Member

• Sep 16, 2018

• #5

I'd probably just start over. Get rid of the fixture and use the money on DIY LED. I feel like buying these hold me over tubes is prolonging the inevitable. You'll just end up spending more money in the long run.

 

wil2279

Well-Known Member

• Sep 16, 2018

• #6

I already have a couple led led ls and was going to order more... But I was just thinking a 2x2 fixture would give the most even coverage in a 2x2 area...

 

Airwalker16

Well-Known Member

• Sep 16, 2018

• #7

wil2279 said:

I already have a couple led led ls and was going to order more... But I was just thinking a 2x2 fixture would give the most even coverage in a 2x2 area...

Click to expand...

I can vouch. The led bars are literally the same thing as strips. Just not as high a wattage/current.

 

Airwalker16

Well-Known Member

• Sep 16, 2018

• #8

There's very little on Amazon in 2ft, but here's what you'd search.

t5 led bulb 22 inch
/24 inch

T5 LED Tube replacement


Anyways, I'd assume EBay would be a much better option to look around.

 

wil2279

Well-Known Member

• Sep 16, 2018

• #9

I found some that have reds, blues, and clear diodes on the same t5 2ft light. They are a little pricy but I think I want to give them a try and see how they work out. I know I might regret it and wish I'd just got another quantum board but having a nice even light spread that is cool enough to place inches away from the canopy sounds perfect to me

 

1

1212ham

Well-Known Member

• Sep 16, 2018

• #10

What are eight T5 LED bulbs going to cost and what are their specs? Got any links to the tubes you're looking at?

 

wil2279

Well-Known Member

• Sep 19, 2018

• #11

No links but it won't be cheap. They are like $21 each. And they have blue red and white LED's.

 

Airwalker16

Well-Known Member

• Sep 19, 2018

• #12

wil2279 said:

No links but it won't be cheap. They are like $21 each. And they have blue red and white LED's.

Click to expand...

Ya, I'd really just go with the cheaper 3000/3500/4000K white ones. You don't need all that extra spectrum. Especially for veg.

 

1

1212ham

Well-Known Member

• Sep 19, 2018

• #13

Agreed. $21 for a 2ft tube is way to much. $188 will build strip light that will crush those T5's.

 

D

Dave455

Well-Known Member

• Sep 19, 2018

• #14

wil2279 said:

I found some that have reds, blues, and clear diodes on the same t5 2ft light. They are a little pricy but I think I want to give them a try and see how they work out. I know I might regret it and wish I'd just got another quantum board but having a nice even light spread that is cool enough to place inches away from the canopy sounds perfect to me

Click to expand...

T5 ..yes !!! great veg light !

 

nevergoodenuf

Well-Known Member

• Sep 19, 2018

• #15

You can actually find better t-8 with higher lumen per watt and a cheaper price, due to the larger area to cool them and there drivers. Plus t-8 fixtures are getting thrown out for new fixtures.