Added by on 2016-06-01

LED HID Indoor Grow Trial using hydroponic lettuce. After loosing 270 heads of hydroponic lettuce to the heat from the HID grow lights and summer time. I decided to give LED lights a try in my “A” frame hydroponic NFT system. Subscribe to follow along and see updates. Let me know what you think by leaving a comment! Related PostsLED vs T5 NFT Hydroponic System Trial Update by The Lettuce PeopleIndoor Hydroponic Lettuce Farm, The Lettuce PeopleNFT Hydroponic System by The Lettuce PeopleTom’s Thumb Lettuce Indoor Kratky Hydroponic Gardening With LED Grow Lights (3/3)Tom’s Thumb Lettuce Indoor Kratky Hydroponic Gardening With LED Grow Lights (1/3)Never Buy Lettuce Again – The Indoor Soil-less Lettuce Grow System, DIY Clean & Easy! 4K

Leave a Reply

Your email address will not be published. Required fields are marked *




  • Phoenix Marzrover 1 year ago

    Why are your plants like that ? If you put rows of they on the floor and the lights hanging above they can stay cool and you can raise and lower you're lights for hot or cool days so your "lettuce" can grow happy and healthy! You vegan you

  • uk-medi-weed-grower 1 year ago

    hi…im not a lettuce grower…I do understand the runnings of hid lights … try extraction . a small inline fan ($70) will stop the room heating up.

  • busschr 1 year ago

    Hi, why don't you use a passive radiator to cool the water?

  • Audioholic 01 1 year ago

    I noticed you have no reflectors on the HID bulbs which makes this sort of an unfair comparison. Also you don't need that much HID for that grow area. You should have a shallow maybe 30 degree white or silver reflector above each HID. If you look at the LED all the light is thrown down as it should be. You could use way less HID power with a couple of simple hanging round reflectors or fixtures as some call them. Even without the reflectors the 400w bulbs are overkill for that applications whereas the LED seems to struggle a little with coverage.

  • justgivemethetruth 1 year ago

    Good God … those fancy LED lights cost thousands of dollars … the are really nice, but wow, that is a lot of "green"!!!

  • justgivemethetruth 1 year ago

    This is really fantastic, I'd love to do something like this, inside or outside.  I don't know why you did not more qualititatively match the performance of the lights in terms of spectrum and flux/luminosity.

    My rough estimate of lights between incandescent performance and LED seems to show that for a given luminosity the power difference between the LED and incandescent is about 10 times.  So since you said that the LEDS are using only four times less than the incandscents, does that mean you are getting better performance from the LEDs … I'd guess twice as much?

    Thanks for some very interesting videos.

  • linda aguazul 1 year ago

    What type of growing medium are you using in your NFT system?

  • RawHydro 1 year ago

    Hello, you say 2 weeks old, 4 days in the system. I am wondering if you might at some point do a video on the journey from seed to being put in the hydroponics? I've very curious to see your initial sprouting. I have a hydroponics setup going myself, and my lettuce looks about half as big as yours in this video, and my lettuce is 3 weeks from seed. I'm guessing it was a bad start. Great videos, thanks for sharing them.

  • Dr Dank 1 year ago

    i look forward to seeing how they perform all the way through

  • zshenry 1 year ago

    Have you tried using an aquarium chiller on your reservoir and wrapping some insulation around it? I have done this for my conical fermenters for brewing beer, and it keeps my temperature constantly dialed in within a degree.

  • PANTTERA1959 1 year ago

    Put the reservoir in a pony frig. Loving this channel.

  • katie phibbs 1 year ago

    Thank you for watching Brock and thank you for your compliments. They mean a lot coming from the Man!

  • meanshoes 1 year ago

    Sorry to hear you had such a loss Katie that's a wee bit of lettuce. I'm curious to see the progress coming up 🙂 the energy savings sure speak for them selfs eh? I love how cool the leds run 🙂 excellent work Katie you have done a great job from the gates 🙂 Brock

  • katie phibbs 1 year ago

    I heard that using the compact fluorescents is a huge fire hazard. Have you heard that? I would love to see your system when you get it finished.

  • Piano Yoga Wood 1 year ago

    You can fill out the led side with 2800 lumen 5500k cfls as companion lighting. Maybe 5 of those in work light type reflective hoods will give you good lumens without the excess heat. When my system is up I'll post a video.

  • katie phibbs 1 year ago

    Thank you for the quick response. I will do my best to make it happen!

  • katie phibbs 1 year ago

    Thank you! I'm very excited about the energy savings and heat reduction.

  • katie phibbs 1 year ago

    Thank you for watching. Click subscribe to get notifications when I post a video.

  • Laurie Windwood 1 year ago

    good video katie!