Seoul claims that the Z-Power P7 Series delivers a maximum value of 900 lumens at 10 watt, higher light output than a 60W incandescent lamp
Seoul’s P7 data sheet shows that the typical flux is 700 lm. This puts the typical efficacy at 70lm/WThe colour temperature is 6300K
Even so, 700 lm from a single P7, 4 chips inside the package is impressive. The data sheet gives the total current as 2.8 A, with forward voltage of 3.6 V, so each chip is driven at 700 mA.
When the device is driven at 1400 mA, or 350 mA per chip, the typical output is 400 lm, corresponding to around 86 lm/W.
In comparison with a 60 W incandescent lamp producing 660 lm with an efficacy of 11 lm/W, the 10W P7 single LED package produces a maximum of 900 lm with much higher efficacy of 90 lm/W. Of course, the LED performance data is measured instantaneously at room temperature, while in a real world application the temperature would be higher and the light output lower.
“Development of the 900 lumens, 90 lm/W P7 Series is a milestone achievement that reinforces Seoul Semiconductor’s leadership position in the global LED industry,” said Hyuk Won Kwon, a general director of Seoul Semiconductor’s power LED business department.
“We will develop new ultra high power products emitting over 1,000 lumens during the third quarter of this year to consolidate and continue advancing our technology.”