Note about the heat sink, I think it has too many fins. Heat sinks for natural air convection that I use in amplifiers usually have more space between the fins, like 1cm or 1.5cm which gives good airflow. Having more close spaced fins means less airflow. Good if you have a fan, bad for natural air convection. So maybe you can find a lighter, smaller, cheaper heat sink with less fins that actually performs better.
This one won’t work but it is to give you an idea. It’s only 10mm thick and 70mm diameter, and gets 2.28 °C/W.
Yes, I understand that there is radiators for active cooling and passive cooling. But I choose between available parts in the market. May be sometime in future I will print copper radiator with branch shaped fins
I ordered it from my warehouse just 1 week ago =( It is in 71kg parcel from China. 20000pcs. About 2-4 weeks and I will have it. And about 7-10 days it will be arrived to Maukka
So are the 2835 seen as the next version of the 3030? More efficient or even more sunlike of spectrum? Or is it purely the same tech in a slightly different form factor?
3030 is 6v from Seoul Semiconducor (Korea) with TRI-R (violet crystals)
2835 is more cheap, it is with violet crystals, it is from Smart ECO Lighting co. (in China)
I do not think that spectrum will be better that 3030, because it is so good spectrum in 6v 3030 LEDs, that better can be only Sunlight or StarLike LEDs (I will have it after 2 month)
With SOL 2835 3.2v SunLike TRI-R (3-R) from Smart Eco Lighting co ltd:
MASS 13D 60pcs SOL 2835 LEDs dimmable
~35$ Ø75.5x151.5(149)mm 231grams Δ41° E27/26 e14 B22
MASS GX53 48pcs SOL 2835 LEDs
~25$ 111 gram
MASS 7C 19w COB SOL
The same photo with 6C
~25$ E27/26 e14 GU10 gu5.3/mr16 B22
Compare of the size 11 and 13D
Futured bedtime bulb lamp with SOL SunLike 2200k 2250k
7w (asian style body with round diffuser) & 5w (special project body with round diffuser)
About discounts for MASS models
It was the reason why I created it
I think maximum discount will be 20-25% (with 6$ international shipping for any order) and will seems like that: 5+pcs = 5% discount; 15+pcs = 10% discount; 30+pcs = 15% discount; 50+pcs = 20% discount; 100+pcs = 25%
Wholesale price will be about 50% (without shipping)