is it possible to have a successful grow using a t8 fixture with only 2 bulbs i know i wont have anything outstanding just want to know how many plants i can grow successfully with 2 t8s .. im not trying to do anything spectacular just a grow for personal use so please tell me how many and bet way i can grow using only 2 t8s
There is a way to supercharge those T8s. There are many videos online on how to do this. I have 2 T8 2 bulb 4 footers that I did it to. They have been running strong for several months now. A normal 4' T8 puts out around 2100 lumens. By adding another balast, the light output nearly doubles.
The concept is that when you add another balast to the fixture, you are overdriving the bulbs, but reducing the draw from the balast. Instead of the original balast powering 2 bulbs, the load is split among 2 balasts. It actually is easier on the balast. It does shorten the life of the bulbs, but the cost of HO bulbs is 4-6 times more, so even if the last half as long, you still save money. I bought a T8 fixture at Walmart, and added another balast for $12.00 more dollars. The total cost for a supercharged High Output 2 bulb fixture was around $25.00.
It works and is not dangerous at all. Google "how to overdrive a fluorescent bulb. It's really cool! Your 2, 4' T8 bulbs will crank 3600-3800 lumens each. I did this in about 15 minutes and it ROCKS! I use them for side lighting to supplement my 6x4' T5s. I wish I had discovered this a long time ago. Would have saved me hundreds of dollars in HO bulbs and T5 fixtures.
Like I said, It shortens the life of the bulb, but the 4' T8 bulbs are only around $3.00 or $4.00 so who cares?
I am new to this forum but have been growing many years. I live in Colorado, and it is legal here now, so I am coming out of hiding.
I have a crop of Strawberry Cough 35 days into flower with all fluorescents. T5s, T8s and Cfls. I will post pics and start a journal here soon.
