Since no one answered.

Expiration dated should be on the back or bottom. I have used a single T8 for seeds. I really don't know a lot about CFL lumens or lumens at all. Seeds will sprout in the dark.
319 Reviewed by 319 on . Questions on nutrients shelf life and wattage for seedlings Its been almost a year since I visited. I've decided to try one more time with a "stealth box" instead of giving up. I already have 90% of the equipment; seedling kit, soil, amendments, nutes. I know my questions are idiotic but in my defence I've never had a succesful grow. I'd still like to keep the project small until I get at least one successful grow. To be frank; I'm sure I fu--ed up the lighting needs on my last attempt. I only used single Fluorescent lamp (exact wattage I forget) Rating: 5