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  1. exkalapalatt

    Samsung LM281b vs LM301b

    LT-V562F G2, 3000K, 72 diode, 560mm. 170lm/W at 900mA and Tc: 40C SI-B8V26256CUS 3,06$ https://www.arrow.com/en/products/si-b8v26256cus/samsung-electronics
  2. exkalapalatt

    Samsung 2ft F Strip for side lighting build.

    Vf 21V, true. Thanks
  3. exkalapalatt

    Samsung 2ft F Strip for side lighting build.

    BRLX Gen2 has 112 diodes in 8s14p order. Thats mean the 1050mA is 75mA/diode and its a rookie number in 5mm alusheet, pump it up till 1400mA or more.
  4. exkalapalatt

    Board from Europe

    The new TCI SLM224/50Y64 128725/830V https://win.tcisaronno.com/public/CMS/Files/0/128725_8xxV.pdf 198lm/W at 90mA and 65C http://www.tci.it/en/contacts/tci-in-the-world/tci-in-the-world/
  5. exkalapalatt

    Board from Europe

    New module from the Helvar. https://www.helvar.com/en/products/LX-562A/ 88chips (4x22) Vf 66V If 200-600mA 3000K If=350mA (86mA/string) 159lm/W at 65C
  6. exkalapalatt

    delete membership

    delete membership
  7. exkalapalatt

    Cheap and Cheerful DIY using Citizen cobs

    A friend from our own site found it: Citizens: http://www.elektrikaup.ee/led-lambid-ribad-ja-moodulid/ Drivers: http://www.elektrikaup.ee/trafod/ Is there anybody who speak estonian or russian? What's the trap?
  8. exkalapalatt

    Is this a Vero 29 killer?

    The 1212 CoBs have 12 diode in a string and the CoB contains 12 string. The first two number is the numer of the diodes in a string and the second two numbers are the strings. So a 1812 cobs contains +50% diodes than a 1212. When you drive a 1825 CoB with 2400mA that is less than 100mA/diode or...
  9. exkalapalatt

    Cheap and Cheerful DIY using Citizen cobs

    The DNA Slovakia have no CLU-048 Ra80 leds or CLU-058 leds on stock right now, they have to order and the delivery time is 4-6 weeks. Quote: we have stock only those on which we have customers, only for COBs on stock we can reduce MOQ.For CLU048 size is MOQ 30pcs, for CLU058 is 20 pcs. we...
  10. exkalapalatt

    Cheap and Cheerful DIY using Citizen cobs

    Probably they won't sell you any Citizen products if the shipping adress is out of Slovakia or Hungary, they are the distributor of this two country. As you sad every country has an own distibutor. You can find this firms here: http://ce.citizen.co.jp/productse/sales_network.php But, who knows...
  11. exkalapalatt

    Cheap and Cheerful DIY using Citizen cobs

    The CLU-048 1212 CRI80 is 8,60€ at the DNA Slovakia, but the MOQ is 30pcs.
  12. exkalapalatt

    IF you are new to LED and want help choosing what to buy, POST HERE!

    Hola! Is there anybody out there who knows how much diode strings are in the CXB3590?
  13. exkalapalatt

    Citizen leds?? Citiled anyone used??

    CLU-046 12x12 4000K (CRI:70 AL7) LER: 354 price is 12,32$+ 23%VAT = 15,15$/COB 1080mA 157lm/W --->157/354= 44% Vf: 34,6V ~37,37W ~16,73 PAR Watt (85C) 15,15/16,73=0,91$/PAR Watt CLU-046 18x12 4000K (CRI:70 AL7) LER: 354 price is 16,8$+ 23%VAT = 20,66$/COB 1080mA 153lm/W --->153/354= 43% Vf...
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