Well, in short, yes - they absolutely can. (One of our editors learned too many lessons with her poor charred plant babies.)
Sometimes it's just a quality issue, so you need to steer clear of questionable cheap grow lights and illegal sellers. Also, be sure to read the instructions provided with your artificial light carefully. (If it doesn't come with instructions, reach out to your good friend Google before even thinking about opening it.)
In general, however, most plants need about eight hours of darkness per day, so unless the grow lights have an automatic shutoff feature, you really can't just "set it and forget it." Plants continue to photosynthesize when exposed to light, and they can burn out if overworked. (Plants! They're just like us!) At best, this can damage their leaves and prevent flowering. But what about the worst case scenario? Your little plant babies may dry out and burn out completely in the excessive light of your grow lights.
Don't let that scare you away from these very useful plant accessories, though! We've carefully reviewed our picks for the best grow lights for houseplants, so you can trust that with proper use, your plants will be well cared for.
ECO Farm FLD 320W Full Spectrum Dimmable LED Grow Lights Bar for Indoor Plants Seeding Veg and Bloom
ECO Farm FLD grow light with upgraded SMD 3030 chip 6 passive-cooled led bars, higher light intensity, less light decay, better lumens and PAR values than ordinary LED chips
ECO Farm DBL5000 Full Spectrum LED Grow Light 480W
Unique designed 6-LED bars provide more even canopy coverage, especially to the outer edges of cultivation areas.
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