Yes!
I’m with JoshK on that one.
Looks like ShareX isn’t very optimized. Even Photoshop compresses the same PNGs to about 40% of the size (edit: same as OptiPNG it seems). Will have to add the optimizer to the ShareX workflow, thanks!
Adam, what do you think about SOLs 2835 LEDs?
It gives a better $/Watt ratio (but surely requires more efforts on PCB and assembling) comparing with COBs.
yes, sure, I can. But workers time in the first world counties cost much more than my time. Also I have expiriense with manufacturing bulbs and upgrading led drivers. It will not twise cheaper when it will be kit. I think about 25-30% off only
1st problem (with 3030 TRI-R SunLike too) - it is power. I mean real power. It is lower that in the datasheet. For example, 3030 SunLike is 6v0.15A = 0.9W (max is 0.2A) It is a lie! Real size of crystal is 0.2-0.25w, there is 2 crystals. So, real power of 3030 6v SunLike is 0.4-0.5w.
ok. okay… The same problem with 2835 from RoyRex (SamrtEcoLightning). What the real power? I do not know… Because I do not have it.
2nd problem is… They do not have it in stock. I tried to buy 100-200pcs for test, but no. They do not have it and will not produce with my quantity (samples, I need samples only for first time)
3d problem is… Another format, inpompatible with 3030 SunLike from SeoulSemico. And another - voltage! It is 3v, 3030 SunLike is 6v, 6v is more better fore me. And I have no board for 2835, but for 3030 I already drawed and have maked orders in pcb manufacturer. Here is it:
22x22x1.6mm (300pcs)
12.5x99x1mm (300pcs)
12x99x1.6mm (300pcs)
the last one 7 types for C5W (C10W) and W5W (T10) I have no about 100$ =( Somebody, make order on my web-site :cry:
Finally! Price. Wholesale price for 3030 SunLike is 0.25 $ per 1pcs (if 4000pcs), but I managed to buy it for 0.15 $ (it is some miracle, because I was not going to buy it, because I think that COB much better for me with their huge violet crystals). Wholesale price for 2835 SOLs is 0.1 $ and 0.05 $ if 500000pcs. It is good price, but if 3030 wholesale price is 0.15, it is not so good.
curtain
applause
thanks for attention!
Heck yes, I’ll take that action. The bulb I’m waiting on was $17 before shipping. A 28% savings on the next order would be $12.24 per bulb. That means 7 bulbs for the price of 5.
Ok, I will create lot with kit
something like that
No rush, I need to get my first order to be sure it fits into my fixture nice.
What are you planning to put in them?
Well, some very high CRI COBs I’ve been keeping since I’ve been away from my lighting manufacture job.
They failed lumen testing, so was able to get them for very cheap.
What about a dimming option? Vast majority of lights I use in my home have a dimmer switch and I use them frequently. I very much appreciate brightness attenuation.
My models with D index are dimmable. Starts from 12w and upper
Great, thank you.
Hello!
The image says it all. SunLike, could you please edit your #6 post here and add some spaces to the text chain? Thanks.
I've reported it to sb56637 to see if some improvement can be made to the forum engine, the above problem also occurs with unnecessarily bloated url links in the simple post editor, I think.
Modes go to ∞
I tested how the diffuser effects the light. It’s very neutral and doesn’t result in any meaningful difference. The small change in tint is probably not even visible. It absorbs 8% of the light, which is also likely not visible. Measurements were done integrated after about 30 minutes of warming up.
Great job!!
I see the COB leds can be directly thermal glued to a heatsink and connected, no need for a board.
However, is there any datasheet available somewhere for them?
That COB features 10S arrangement, seems clear (?). So, 2P emitters would work nicely with long lifespan with a single standard ≈300 mA driver.
How about the other COBs? 
I knew there was some capacitor swaps and stuff on the driver, but holy hell. I just skimmed through the 1.3 hour video of you doing ONE bulb. You are a madman. I don’t think I want to learn all that to save 28%. I’ll just settle for affording fewer bulbs.