Datasheet

1010

, the Cree logo, XLamp

and EasyWhite

are registered trademarks of Cree,

Inc. UL

and the UR logo are registered trademarks of UL LLC.

XLamp

mK-R2 LED

NOTES

Measurements

The luminous ux, radiant power, chromaticity and CRI measurements in this document are binning specications only and solely

represent product measurements as of the date of shipment. These measurements will change over time based on a number of factors

that are not within Cree’s control and are not intended or provided as operational specications for the products. Calculated values are

provided for informational purposes only and are not intended as specications.

Pre‑Release Qualication Testing

Please read the LED Reliability Overview for details of the qualication process Cree applies to ensure long-term reliability for XLamp

LEDs and details of Cree’s pre-release qualication testing for XLamp LEDs.

Lumen Maintenance

Cree now uses standardized IES LM-80-08 and TM-21-11 methods for collecting long-term data and extrapolating LED lumen maintenance.

For information on the specic LM-80 data sets available for this LED, refer to the public LM-80 results document.

Please read the Long-Term Lumen Maintenance application note for more details on Cree’s lumen maintenance testing and forecasting.

Please read the Thermal Management application note for details on how thermal design, ambient temperature, and drive current affect

the LED junction temperature.

Moisture Sensitivity

Cree recommends keeping XLamp LEDs in the provided, resealable moisture-barrier packaging (MBP) until immediately prior to soldering.

Unopened MBPs that contain XLamp LEDs do not need special storage for moisture sensitivity.

Once the MBP is opened, XLamp MK-R2 LEDs may be stored as MSL 1 per JEDEC J-STD-033, meaning they have unlimited oor life in

conditions of ≤ 30 ºC/85% relative humidity (RH). Regardless of storage condition, Cree recommends sealing any unsoldered LEDs in the

original MBP.

RoHS Compliance

The levels of RoHS restricted materials in this product are below the maximum concentration values (also referred to as the threshold

limits) permitted for such substances, or are used in an exempted application, in accordance with EU Directive 2011/65/EC (RoHS2), as

implemented January 2, 2013. RoHS Declarations for this product can be obtained from your Cree representative or from the Product

Documentation sections of www.cree.com.

Recognized Component

Level 4 enclosure consideration. The LED package or a portion thereof has been investigated as a re and electrical enclosure per ANSI/

UL 8750.

Vision Advisory

WARNING: Do not look at an exposed lamp in operation. Eye injury can result. For more information about LEDs and eye safety, please

refer to the LED Eye Safety application note.