Grow Light Test: White vs Blue-Red LED light (Surprising result!)

Want my equipment?

Today I will be showing you the results of my grow test between a household white light and a red-blue grow light. I will test a Sansi light vs blue-red in the next test.

[yclare]

I’m so pleased as I’ve just bought a blue red light.. and wasn’t sure I’d done the right thing.. I’m new to hydroponics. Great video thanks..

[daviddahl]

Thanks for the video and honesty, looks like you gave the blue/red a head start picking a slightly larger plant to start with but I appreciate the info and the outcome. I wasn't expecting that either.

[sonnyxlbright]

Great experiment. Saved me the trouble of doing it myself.

[lsgalicia]

HI Joshua, what are those containers you are using in the video? They look like foam covered drinking cups. Where did you get them?

[projecthardskinned]

Never mind the red and blue. A full spectrum is the way to go. I have both, and the difference is about 20%.

[pledgeyourallegiance]

I seen a video with the little 12 or 18 inch led lights. The red and blue did not do as good as the normal white light. Both claimed to be full spectrum

[pledgeyourallegiance]

Mine have red and blue led and it says full spectrum. Have 2 red and blue and 2 white but actually has some red leds too but the light appears white.

[timothyjames]

Hey man. Thanx so much your vids r way helpful. I'm on a cheap led full sect driver and the two fan deal...and a far red 730 nm strip with a 60 watt led white to tie it all together. My question is. Can the far red strip be too close?? I have the other two lights about 16 inches with min leaf singe...but I'm growing non time sensitive plants. So I'm using the fare red in conjunction
16 hours on

[gjsxnobody]

wow.. very cool testing procedure. I like that you catch things and are honest about some failures. That's the true scientific method. Keep going bro. we need more brains like yours in our society

[HoiPolloi]

Cool experiment. I'm in the process of making my own grow light.

[RohitSingh-sczo]

I recently purchased a couple of 3000 lumen LED bulbs. They are giving a PAR reading in the range of 500 to 600 at desired height. But they don't have any reddish or orangish tones. I mean they are dazzling white with a very very faint golden tint. Would that be a problem during the complete growth cycle of the plant? (The packaging says 6500K cool Day-light).

[HydroHavenGrow]

D'oh! I thought I left a comment already. I believe the cat appeared twice (resorting to cat videos now? ;-) Those LED light bulbs bring back memories, I started growing with one (6500K 11-watt) growing a head of lettuce out of a coffee container. Interesting experiment. Blue thumbs up for you.

[erniemoi]

Aye this was a good video man, keep em coming, need all the info I can get

[Somebody]

You might have said it in the video but what kind of lettuce plants are these?

[thawrath]

I tried something like this with the devil's lettuce. Quite a difference between the colors effect!

[saaaif]

can I grow 1 cannabis plant using three 9 watt blue led and two 9 watt red led light? pls give me rply in the comment. I am really frustrated man. Cannabis is not legal in our country and our country has very fertile land thts why none of us use any grow light or import from other country.

[annabellewallis]

Still a great video and experiment, but wattage doesn't actually matter when it come to LEDS

"With incandescent and florescent lights, watts were a good measure of the brightness of a light. Not so with LED. Lower wattage can produce more light."

"it's not really about wattage. Wattage is a measurement of electricity consumption, and while it's helpful to know how much wattage your grow light uses (so you can make a more economical, energy-saving choice) it actually has nothing to do with the amount of energy your plants need to grow"

"The watts rating on a LED grow light tells you how much electricity it will use, and therefore the ongoing cost to run the light, but it tells you very little about how bright the light is, or how suitable the light is for growing plants."

[patterdalezipsuzilil]

Nothing to do with wattage it's spectrum I use red blue channel for corals