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kaya in berlin has them ;)

Interesting paper from MIT https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0213918

so far nobody backed the proposal, including you. i wonder why that is.

nice, can you also post a pic of the backside? how are user gonna connect the bars to a driver?

https://horticulturelightinggroup.com/collections/all/products/hlg-saber-100 @Stephenj37826 @robincnn what's up with not stating efficiency and used parts anymore? what kind of 660nm leds are you using? what kind of output can one expect from this bar? PAR map?

that was a supple hint for you to check what the power usage of these chips is. which would have been self explanatory.

volt x ampere = watt

usually you hang them somewhere, plug them in and put at least 1 plant under

so i'm wrong because you posted the wrong link? work exactly and post only stuff coming from knowledge instead of hear say and i won't need to correct you ALL THE TIME.

you do realize that you just compaired a diy kit without a frame with an out of the box product? you need more than a screwdriver to build this up (as it is in the description in your link: "If you can a use a Drill and a screwdriver your (sic!) good to go"). why are you always so sloppy when...

have you re-read some of you older threads? try it, it's fun

check all of the threads you started that ends with a question mark, at least 80% could have been solved by just using the SEARCH sounds familiar?

that coming from you, the master in useless, redundant questions, simply amazing.

it concerns me everytime i need to read about your incompetence in anything life

can you find out ANYTHING on your own!?

k, that's it. have fun with your life. i'm out.

even if you have a cover you would still need to wipe off the stains, so what exactly do you gain in saving man hours vs. just lifting up the lights?

why are you gonna touch the leds if you won't touch a hot HPS bulb? the only argument i accept is getting stuff on your panels when you spray your plants. so build a lift for your lights or crank them up manually before spraying, problem solved...

is there an ip rating on HPS lamps? can you touch a HPS bulb?