Crowdfunding of mass model of SunLike bulb (TRI-R) updated 02.05.2021

It might be a good business move to mix 3000k and 4000k LEDs to create the elusive “true neutral” 3500k bulb. There are a lot of sellers selling 2700/3000/4000/5000k bulbs, but I don’t know of any selling a good 3500k.
I know you are thinking I must be basing this on personal opinion, but the ANSI standard “C78.376-2014” accepts 3500K as the true neutral.

Exerpt:

https://www.nema.org/Standards/ComplimentaryDocuments/C78-376-2014-Contents-and-Scope.pdf

I still have no spectrometer =(

I’ll trade you a 3500k bulb for a spectrometer report of it from my C-800 :wink:

Spectrometers may look expensive, but if you get one used, then re-sell it, it’s like a free rental :slight_smile:

I can take mixing spectrums from my helper for free =)

But I really do not need it

Did this for myself, but thought I’d share it in case the comparison is useful to others:

There’s RIRERA11 Telegram: Contact @sunlikenews
(SunLike MASS 11 33$ Ø58x130mm 130grams Δ38° E27/26 e14 GU10 gu5.3/mr16 B22)

and RIRERA9 Telegram: Contact @sunlikenews
(SunLike10X v.2 (9.5w) + round diffuser 18x3030 6.2v SunLike
27$ Ø68x130.5mm 118grams Δ31° E27/26 e14 B22)

Added.

Oooo, you should make a ~13W BR30 replacement. Would love to see that 3500k combo in our kitchen!

Edit: Added BR30:

Edit: In fact, the BR30 is even more suited to this configuration for LEDs. The A19 and A21 bulbs are designed to be closer to omni-directional, while the BR30 is designed for a 90 degree direction beam.

Edit2: If I could buy BR30 in 3500K SunLike 2835 that put out 1000 lumen for under $35 ea, I would buy 6 right now.

Evanh :slight_smile: :+1:

s. 5% discount for this man!

SunLike10x v.2 (9.5w) (RIRERA9) also can be 11w if 36 leds

RIRERA11 (can be 9.5w if 18 leds)

I can not find aluminium body BR30 =(

But I can add reflector if COB led(s)

s. use optiPNG to lossless optimise size of png files
(after that pngOUTwin for additional ~5%)

Those are some great sketches evanh, good work!
Did you use Inkscape?

Thanks Joshk, I use Figma for just about everything that doesn’t need more than 0.1mm precision.

[quote=Sun]

Here’s an (optimized) png of my SORAA VIVID bulb. It’s a bit thicker than normal BR30’s, so I took measurements with calipers in case it helps to find another body that might fit.

SunLike, in a year or two years, with the work you are doing in this area, a company is going to try to buy you out in a way that may well sell you short, or worse maybe just take your work and market with a much larger backing fund.

I do hope you are preparing yourself for this.

By the way, subscribed. Future customer.

Evanh May be something like that?

p.s. I just measured the small one

Ф93x99mm

It’s close. If there was a way to extend it at the base by 14mm, it’d be about perfect. As is, it looks like it gets thicker too close to the socket.

EDIT: Looks like the max diameter of the recessed fixture is 113mm, so too small for the next size up.

Just use e27-e27 extender

I have these E27-E27 extenders from Amazon. They extend the bulb exactly 32.4mm.

I can add any long here (by nut or washers)

Or by this thing

Here are both options. I like the idea of risers best, since that gives us the ability to have the LEDs at the same depth within the fixture as a standard BR30. The overlays do show that it might still have a clearance issue though. I’d have to get a more detailed diagram of the standard BR30 fixture to check that clearance without just trying to screw something in.

The extender solves clearance, but also has the plane of LEDs 15mm further from the socket.

I just added MASS15D to my site — MASS15D