Lumistrips UK
Lumistrips US
Lumistrips ES
Lumistrips PT
Lumistrips ITA
Flip-Chip LED Test: Nichia is the performance leader
- By Lumistrips LED Professional
- Apr 2, 2020
p>As a manufacturer, we aim to use the newest LEDs technology in our LED strips and modules. One particularly interesting new technology is the Chip Scale Packaged LEDs, known as CSP or Flip-Chip LEDs.
Before choosing the best performing CSP LED for our products we have compared more than a dozen models from the top LED manufacturers: Nichia, Samsung, Philips Lumileds and Seoul Semiconductor.
For a meaningful comparison we selected LEDs that function at 350 and 700 mA with a voltage between 2.75 and 3.2 V.
For each category we compared the luminous flux and luminous efficacy at the usual junction "lab temperature" of 25ºC and at a more realistic 100ºC. The comparison data is that from the manufacturers datasheet.
CSP at 700mA, maximum 2.5 Watt, for street or outdoor lighting, 5000K, CRI 70.
At 25ºC The Nichia CSP LED has 20% higher flux (304 lm) and 27% better efficacy (145 lm/W) than the second performer, Seoul WICOP (247lm and 114 lm/w). Luxeon Flip Chip White 10 has similar performance (242 lm/w 115lmw) to Seoul while Samsung lags somewhat behind (210 lm and 95 lm/w).