Search results for query: new boards

By upgrading Samsung’s highly successful 2835 packaging structure, the LM281B+ Pro delivers an exceptionally high degree of reliability with a surprisingly long lifetime. The new structure increases the temperature cycle to 500 cycles between -45℃ and 125℃* — more than double that of the...

Isn't the bridgelux hort line called thrive..what's your opinion on those; and additionally on the new EB3 series? Other than efficiency has anybody looked at who has the best spectrum for plants from the big boys?

Can you tell me more about the anti sulfurization of the pros? What does it consist in and what difference to standard 281+? Its not a gotcha, im genuinely interested as im looking into making some boards with 281s and appreciate any info them. Re "the horses/samsungs mouth": Im not convinced...

My case and point... K series... 256 281 Pros ...~$11....hell you buy enough of them you could get them for $9. 5630's are dead. 2835 are the present and future. Even 3030's are on their way out essentially. Pros have 2X the thermal cycling ability than the regular. Also pros use the best...

When you keep saying 561c strips...hard to read when a person knows what is an actual 561c based model. That's not a model of strip at all. Multiple samsung strip models at the time used 561c's. Not just the F-series that you are probably attempting to reference. With that said, 561's are...

If you have done that its way way way too much. The 12% is the percentage of active content in the bottle. That pecentage is only displayed in acrdance with the saftey laws for corosivs ect it isnt any thing to do with directions of use, just the percentage of the corosive chemical and the...

Coming from a mech. eng. background, I must admit, failure modes are often key in design. What are failure modes? We sit together in a team and come up with all the ways a device may potentially fail. Failure Modes - Water pump relay gets "stuck" closed - pumping water when it should be off...

No, i was saying just put it in as is, i dont wanna advice anyone to saw things in half even though it looks like you could reasonably do it if technical minded. But just dim it down a bit. Looks like if it fit. Since all rows light up the same id just write off those diodes and use it.

Wasn't sure if rocket was referencing using it as is half power as to not trigger any other diodes. If I can indeed cut it in half and use it within the 1-50% on the dimmer, then that would be great. I'm not entirely sure how these diodes are configured on the board. Looks like it's just 1...

Dude, there are several diodes which are out on the left board. As Rocketsoul says, just cut it in half an discard the faulty side. Then run the positive and negative to the positive and negative on the driver an run half the power. You could probably use a wattmeter to know what wattage you're...

Michigan is on a coast. Not an ocean, but it’ll do.

It would be nice to see that happen. He would cry nonstop about it, and might even become more deranged/dangerous once he sees what it is like and knows all this shit show he has been pulling since running for the Republican nomination (as soon as he fled DC before Biden was inaugurated to try...

A really good story out of Texas about a radicalized zealot running for office and realizing that when she got to work that it was all bullshit: https://www.texastribune.org/2024/05/15/texas-granbury-isd-school-board-courtney-gore/

@curious2garden what is the back and green piece on the irrigation pic? Anti-siphon?

i dont see how its the opposite?, they are more or less the same spectrum. apart from cree offering 3 different spectrums with differing amounts of blue. its clear this is a push for efficiency (the same as the mints) as they like you say strip out as much of the red from the whites as possible...

One would almost say the opposite. It's spectral as much as efficacy based compared to plain mint. The whole point is to be able to target all blue, green, and red ratios more directly/independently as well as in the most efficient ways to do them. The white photophylls allows change to B:G...

110 hertz, 220 twice as much. Mornin.

My wife half-jokingly, likes to occasionally remind me that I made a whole career out of a single really bad decision when I was 14 to fix my garage sale 1978 Euro-wired television power adapter with two stacks of pennies to sandwich the plug in place. The adapter had so much play that the...

If your worried about soil compaction I love big outdoor plants nothin like an 8+ ft tree! If your worried about soil compaction what iev seen Competition pumpkin growers do is use walking boards they put down a 2×10 or similar to help distribute there weight over a larger area to decrease...

https://www.rawstory.com/as-news-deserts-spread-u-s-journalism-fights-on/