Four foot two T8 bulb fixture coverage

Salaam · February 17, 2021

Hello all,

It's been a few years since I started seeds as a novice and I have a question for those more experienced. I have 4 ft long 18 inches wide shelves that I'm planning to cover with a pair of 4ft T8 bulb fixtures. Each fixture has two bulbs, making for a total of 4 bulbs for one shelf. The total width of the two fixtures is about 10 inches. Will these two fixtures adequately cover the 18 inch wide shelf, or do I need a third fixture per shelf?

Also, does anyone have experience with lights like https://www.amazon.ca/gp/aw/d/B07RRV...WZ95494&psc=1?

February 17, 2021	#1
Salaam Tomatovillian™ Join Date: Mar 2012 Location: Ottawa, ON Posts: 128	Four foot two T8 bulb fixture coverage Hello all, It's been a few years since I started seeds as a novice and I have a question for those more experienced. I have 4 ft long 18 inches wide shelves that I'm planning to cover with a pair of 4ft T8 bulb fixtures. Each fixture has two bulbs, making for a total of 4 bulbs for one shelf. The total width of the two fixtures is about 10 inches. Will these two fixtures adequately cover the 18 inch wide shelf, or do I need a third fixture per shelf? Also, does anyone have experience with lights like https://www.amazon.ca/gp/aw/d/B07RRV...WZ95494&psc=1?