The XLamp XP-G LED
The XP-G LED, currentlyavailable in cool-white, can produce up to 367 lumens when drivenat 1A, at a typical efficacy of 111 lm/W. The highest-performingbin also has a standard minimum flux at 350 mA of 139lm.
The XP package size is 3.45 x 3.45 mm. This makes the XP-G 46%brighter and 64% more efficient than the highest-performance XR-ELED, with an 80 percent smaller footprint.
XLamp XP-G cool white LEDs set a new standard for LEDperformance. This level of performance can potentially reduce therequired number of LEDs, as well as the size and cost of LEDfixtures. High efficacy at lower current (up to 132 lm/W typical at350 mA) can lower the total power requirement for a portable orsolar lighting application, which can reduce the amount of solarcells or batteries needed.
Reference by LEDs Magazine