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LED grow light color spectrum for seedlings

Posted: Sat Oct 31, 2020 5:29 pm
by elaineo
I'm thinking about ordering a Yescom Grow light to keep seedlings going over the winter. The Grow Lights come in Red/Blue, Red/Blue/Orange, White, and other combinations. What color combo do you guys use?

This is the Grow Light: https://www.amazon.com/Yescom-Orange-Ul ... 015YX8YGY/

Thanks!

Re: LED grow light color spectrum for seedlings

Posted: Sat Oct 31, 2020 9:14 pm
by Apollyon
Not sure what you're growing but I use the all white 225s and they work great for cephalotus, drosera, and pinguicula. They give out enough light to make the plants "blush"

Re: LED grow light color spectrum for seedlings

Posted: Sun Nov 01, 2020 2:17 am
by elaineo
Good to know, thanks. I thought there might be some benefit to using the fancy red/blue lights. White is convenient, I can reuse it as a bathroom light when I'm done.

Re: LED grow light color spectrum for seedlings

Posted: Sun Nov 01, 2020 9:01 am
by Invasion_UwU_OwO_69_
I would say a heat mat is more beneficial when germinating seeds indoors. I did 3 batches this year, and all had a roughly 95~100% germination rate. I've only used a 2700k 90+ CRI cree bulb with a heatmat set at 84 ºf

my latest are some 1month 'A2' crossed with 'Jim Grant giant.' I lost most of the seeds due to a surprise shower, so I collected the few still attached to the seed pods and decided see how seeds would do in coco coir.

Re: LED grow light color spectrum for seedlings

Posted: Sun Nov 01, 2020 8:06 pm
by elaineo
Very nice! Do you leave the light and heat mat on 24/7?

Re: LED grow light color spectrum for seedlings

Posted: Tue Nov 03, 2020 1:00 am
by Invasion_UwU_OwO_69_
elaineo wrote: Sun Nov 01, 2020 8:06 pm Very nice! Do you leave the light and heat mat on 24/7?
I have the light on for around 16hrs. I turn it on when I get up and when I go to bed.

The heat mat, I have it on 24/7 since it's a unheated room