grisbi wrote: ↑

Sat Mar 03, 2018 4:28 am

nichia 757 @5000k 97cri

where to get a strip with this LED?
still not sure what to get. alibaba aluminum boards or strips or F-series.... or anything else really

as LG kindly pointed out to me: "The Samsung engine calculator lists the F562B PCB material as CEM (composite epoxy material)".

de la soil wrote: ↑

Tue Mar 06, 2018 1:33 am

I did place an order for several aluminum 275mm and 560mm strips from alibaba

which company? what did you pay?

i start to wonder if what i rather want is something like a H/F/Q-series strip but with an aluminum PCB instead. i found some suppliers claiming they use LM561c and 15*560mm aluminum PCB. these dimensions render them more universally usable for DIY compared to quantum boards, while retaining the goo...

after no responses through alibaba chat, inquiries and orders, i tried to contact meijiu trough their listed email and they replied instantly. anyway, funniest thing ever just happened: Hansion replied as they were out of stock and told me they were about to start producing a 308 LED board tomorrow....

As for being replacements for strips, I think you can get a better more controlled spread with strips so no. [... ] F-Series strips are my end goal, just hustling together some cash in the meantime. i like that they are on aluminum PCB rather than epoxy which is better for heat disappation (right?)...

The Samsung engine calculator lists the 562B PCB material as CEM (composite epoxy material). i am disappointed. i want an aluminum pcb. because with epoxy even when u put the strips on a heatsink the pcb acts like a barrier for heat disappation. any aluminum-pcb product recommendations? .. alibaba ...

are those a serious alternative to samsung strip builds? can somebody tell if they use genuine samsung LEDs and if they are good quality in general?

i want to go the same route with some F562B strips and when i looked at the prices of HLG Constant voltage drivers i figured out i would take a more powerful of the bunch, because they cost just a few $ more than the less powerful. so with the HLG-185H-24A the output current can be adjusted to 3.9A ...

sorry for jumping into the conversation, but i couldn't find out what kind of material the PCB of samsung F-series F562B strips (or led strips in general) are made of (because it is not really listed in their datasheets). if it's aluminum and i drive the strips softly (700mA instead of 1120mA), can ...

ok i think i'll go with the F562B (SI-B8T261560WW) how much more efficient than 175 lm/w will they get when i power them with 700mA instead of 1120mA. can this be found out using the samsung calculator? it is a pretty complicated tool. https://www.samsung.com/led/support/tools/led-component-calculat...