I'm trying to add some greenery to my space with houseplants, but my home doesn't get much bright indirect light because it's surrounded by woods. I decided to bring in some grow lights to help out. I've already purchased a couple of Sansi bulbs—one is in a desk lamp and the other in a clip-on shop light. Recently, I came across a Sansi light that has four bulbs on a gooseneck arm, which has a PPF of 50 umol/s. I'm currently waiting to confirm if that number is per bulb or for all four combined. From my research, I've learned that an average houseplant usually needs between 200-500 umol/s to thrive. This leads me to question whether these lower-output lights, like the cheap stick-in halo lights I bought, can still serve as 'supplement lights' in rooms that already have some light. Also, regarding low-light plants like a ZZ plant, would a light emitting 25 umol/s be sufficient for growth? Any insights would be appreciated!
3 Answers
I've been growing my houseplants, mostly succulents, under grow lights for over two years without much natural light, and they've done pretty well! In fact, my variegated euphorbia ammak has thrived under the Sansi four-headed lamp, growing significantly since I started. I’ve learned that while it might not be as fast as growing outside, it's still great to see them flourish!
As for the ZZ plant, mine’s been in a low-light situation, and it’s managed to produce new growth even without direct light. Your lower-output lights can definitely help supplement the existing light, especially for plants that don’t require much brightness.
Just keep in mind that the distance from the grow lights matters. Experiment a little to find what works best for your specific plants! Good luck with your plant journey! ?
I came across this 50 umol/s figure—can you clarify where you found it? I’d like to compare!
You’re definitely on the right track with your Sansi lights! They’re potent little units. I use the four-gooseneck model as well, and while I’ve had a couple of plants get sunburned from it, I still find them effective. I think the 50 umol/s you mentioned is indeed per bulb—it’s pretty strong overall.
Also, the Barrina T5 lights are popular too. They tend to get a good rep, but I've noticed the Sansi ones deliver more light according to my light meter app. So, for your situation, those lights can work as supplemental lighting, especially for low-light plants like the ZZ plant.
That's awesome to hear about your euphorbia doing well! I've hesitated to get grow lights since I was nervous I couldn't provide enough light. I’m glad to see others succeeding!