The LM561B middle-power series of LEDs from Samsung are the highest efficacy mid-power LEDs available. This LED has completed 6,000 hours of LM-80 testing at 150 mA and 105°C. It is great for use in premium bulbs, ambient lighting, and LED tubes. There are a variety of CIE bin support options, including full, quarter, and kitting bin (for warm white). It also has a small footprint of 5.6 mm x 3.0 mm.