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Cree XLamp XL 50 Lumen 1 Watt LEDWe are offering these LEDs at a smoking price. One of the major online electronic surplus stores is selling these at 6.50 each. Cree XLamp XL series 7x9mm 50 Lumen at 350mA (~90 Lumens at 700mA must keep junction temperature below 80C, this requires a well designed PCB, refer to CREE website for CREE XLamps )
Warning these are CLASS 2 LEDs per IEC 60825-1, Do not stare into LED they can damage your eyes.
The binning is from 47 to 51.7 Lumens
The color temperature approximately 6000K
Viewing angle is 100 Degrees
Package is 7x9mm
For the specs click here:CREE XL7090 Datasheet The actual part number is XL7090WHT , binning information: L100 WG M 0004
These LEDs do require heat sinking! They also require a properly designed current limit circuit.
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Cree XLamp XL 1 Watt LED Mounted on PCBCree XLamp XL 1 Watt LED mounted to PCB. These LEDs will need a current limit circuit and should be mounted to a heat sink (about 10 surface inches of heat sink per watt required).
The PCB features:
*1x1 inch
*no electrical connection to bottom of board
*two mounting holes for 4-40 screws (can be enlarged to 6-32 without structural problems
*no solder mask on bottom for better heat transfer to a heat sink surface
*can be connected series in groups, two power connections for each positive and negative pin, example
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Blank PCB for Cree XLampThis PCB is designed for mounting the Cree XLamp 7x9mm package.
The PCB features:
*1x1 inch
*two mounting holes for 4-40 screws (can be enlarged to 6-32 without structural problems
*no electrical connection to bottom of PCB from power connections
*no solder mask on bottom for better heat transfer to a heat sink surface
*can be connected series in groups, two power connections for each positive and negative pin, example
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