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can you resuse the connector once you pulled it out? Thought its a one-usetime connector. edit: sorry, thought you meant the board connector. Yeah could do it on the wago, allthough its the one that shows the least amount of open cable. And even with a shorter wire its still no protection...

my light if finished, im declaring war on LM301 lights! Now its not the most beautiful cable management, but if i wanted to make these things invisible, it would take me another week. Im very slow with these things. Now i only need to fit my 2 fans in the back. I have concern about some...

everything is in the datasheet? what datasheet you talking about? Samsung? Theres only lumen there. And not even for different currents. Maybe you can show me a datasheet that shows umol/J for tzhe LM281B+ SE rank if its easy for you.

"this is for the LM281B+", the "data", dont even wanna call it like that, it shows 165 lumen/watt at 150ma. Thats almost 0.5w, maximum power. The diode can reach 200 lumen/watt at more reasonable current. Dont know why in the world people dont get this straight and always ignore the current...

guys i think its even 2 of this things. What do you think about that Philips 6500k bulb? its got less than half the diodes, but same data. 1521 lumen at 13 watt. I guess nobody can say what diodes these are? Does look far cheaper to me than the 2,49eu bulb. Costs 4eu now i think but it was more...

yeah but what exactly make a quantum board a patent? Does anybody wanna give an efficiency guess for my lamp?

theres no data on this LM281B+ boards, is there? I mean complete board, not just the Lm281B* SE rank datasheet. edit: yeah i was wrong with HLG but i didnt want to edit my comment or delete it, would have looked cowardish. But HLG wasnt the first to have the idea to put some LEDS on a board...

yeah i had that in mind as well. But couldnt find my soldering stuff and hardwarestore was about to close, so i bought 2m of a thick cable with 3 solid wires in it.

not a single person said its HLG. Besides that, their Boards are also made in China, who knows, maybe the same factory. Theyre using more expensive 660nm solutions. I dont even know, if they ever had LM281B+ boards. Total cost of this lamp is less than 250eu. edit: they assemble in USA, but i...

have to wait until tommorrow....no lighting up today :(

ok....up to the home depot 3rd time today^^

man i almost thought i messed up again. have 2 clones, they didnt grow for almost 3 weeks. 1 was only redundancy .Now suddenly over night one grew 2 tiny leaves and you can see the whole plant is very alive at once and moving his leaves like a little sputnik. My first try sucked. Followed a...

never use standard wire? Im using AWG 19 copper cable. Its many fine copper strings, that makes it difficult to apply force. what wire should i use? I think ill just secure every connecting with a tip of transparent silikon. Probably not the only good reason. Still wondering what im doing wrong.

hello men, can somebody give me advice for this connectors? i just suck at them. Theyre supposed to hold on to the wire, just put in in? I pushed and drilled different diameters in there, single or doubled wires..doesnt hold, the slightest pull and theyre out again. :( Wanted to use 0,75 mm2

Hello, id like to ask what happens if you cut the mainstem of your motherplant? I want to keep it small enough so she can live in my cupboard. 2000ml airpot. Now cutting and trimming fanleaves and sidestems should be no problem. But how can i limit the height to 25-30cm? From topping i know it...

please? Dont tell me you didnt cut off the diffuser? First thing to do. i measured 700-800 PPFD 10cm, and 250 20cm straight under the bulb. was a 1521lumen bulb, 13 watt. With 13watt/1521 lumen bulbs you reach about 1,8 umol/J with cut off diffuser. These bulbs have about 130 lumen/watt. I was...

guys im not thinking of a "what lamp is the best" thats highly subjective. But there sure can be chart for, what diode is the most efficient at what current, what colour and bin and so on. You could see if your 2 boards with cheaper diodes are same or more efficient than a 301B Board. It would...

i think its emergency, so you can hook battery if poweroutage in your region. nah i think machine test is probably close. just additional points of the existing poles, also 220v?

yes and in the left upper corner theres a Phillips screw, thank you :) Dude were very obviously speculating about that 2 metal dildos and not that boring black boxes XD

why would you make a reading point in a cheap bulb that you cant even reach anymore when the diffuser is glued in? And what would be a usecase? Quality control? In a 2,49eu product? would be funny if you could just hook a battery in there. And maybe even get better efficiency with less...