Matthias Sperber @deadhead ?

active 4 years, 1 month ago
  • Matthias Sperber commented on the blog post My test WindowFarm with DIY LED fixtures   4 years, 1 month ago · View

    Okay i am trying to build a LED lamp myself and the best i have found so far would be the OSRAM Golden Dragon plus series. With an optical efficiency of up 79 lm/W (red), 35lm/W (blue) and 107 lm/W (white) they seem to be quite nice LEDs. My question is: What would be the [...]

  • Matthias Sperber became a registered member   4 years, 1 month ago · View