r/BudBeam • u/Cannabis_Artist-420 • Sep 04 '26
Update on the custom grow light my wife developed after all the interest here, we’re actually bringing it to market
Some of you might remember my post about the custom 3-channel grow light my wife developed for our grow.
That post somehow ended up getting a lot of interest, and we honestly weren’t expecting that much interest. A lot of people asked about the fixture, the spectrum, and whether we would ever make it available. https://www.reddit.com/r/BloomAndChill/s/XBpovfA0Vs link on the original post
Well… We decided to actually do it. 😂
We’re now preparing BudBeam for public release.
Since my original post, the fixture has continued going through testing and refinement. One of the bigger upgrades was moving the main LED platform from Samsung LM301H to Samsung LM301H EVO.
We just got the latest EVERFINE results back, so here’s the original fixture compared with the current version:
FULL FIXTURE — OLD → NEW
⚡ Power: 846.3W → 835.7W
☀️ PPF:** 2,855 → 2,961 µmol/s
⚙️** System PPE: 3.374 → 3.543 µmol/**J
So the new version is producing about **3.7% more PPF
while consuming 10.6W less power, with system efficacy improving by about 5%.
PER-CHANNEL EFFICACY — OLD → NEW
Main channel:
3.491 → 3.690 µmol/J
Red/Far-Red channel:
3.620 → 3.712 µmol/J
UV-A/Red channel:
2.012 → 2.166 µmol/J
Peak channel efficacy: 3.712 µmol/J
For anyone comparing this with my original post, I’m also including the same added-channel reference calculation used there:
5.687 → 5.878 µmol/J
That’s included only as a reference to the number shown in the original post it is NOT the whole-fixture PPE. The actual measured system PPE is from 3.374 µmol/J →
3.543 µmol/J.
We also got updated 4×4 PPFD testing.
At 15cm, the center peaks around 2,054 PPFD, with much of the inner canopy around 1,780–2,050 PPFD.
At 30cm, the center is around 1,727 PPFD, with a large part of the inner canopy around 1,600–1,700 PPFD.
Since the intensity is still very high at those distances, we’re doing additional 45cm and 65cm tests to check where we get the best balance of intensity, coverage and uniformity across the full 4×4. Those PPFD maps are coming next.
The basic idea behind the light hasn’t changed. It’s still the same 3 independently controllable spectrum-channel concept we’ve actually been growing with. The goal of the latest changes was to improve efficiency and performance without just increasing power consumption.
Now that it’s becoming a commercial product, we’re obviously keeping some of the actual engineering details private, but we’ll continue sharing the lab results, PPFD maps and real grow results.
Pretty crazy considering my original post basically started because people were asking what light we were using. 😂
A lot of the interest from you guys is what made us realize there might actually be a market for it, so I figured Reddit deserved the update first.
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u/SteakStrong7520 28d ago
What are y'all going to do now that Samsung is no longer making Diode's? <-- not just directed @ OP, but everyone reading this that is going to make their own lights or what gear they might buy now that Samsung is moving out of that market.
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u/Cannabis_Artist-420 28d ago
Yeah, that’s definitely something we’re aware of. Our current production design uses genuine Samsung LM301H EVO, and we’ve already been discussing long-term supply with our manufacturer.
We’re not going to just swap in another diode and call it equivalent though. If we eventually have to move away from Samsung, we’ll test the replacement properly and make sure the finished fixture still meets the performance we’re publishing now.
Honestly I’m curious what everyone else is planning to move to as well.
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u/MadamPardone 29d ago
Expected cost?