How long should I keep my grow light on?
Prerequisite: Light Meter Without a light meter, you’ll never be able to make sense of how much light your plants are getting. It’s like buying an oven without knowing what temperature you’re setting it to; like a car with no speedometer. Any of these will do:(Amazon Affiliate Links)Dr. Meter (shown above): https://amzn.to/34qxtfxDr. Meter (version 2): […]