Anyone done a build with a SSC-Z7

Just wondering if this LED was worth messing with:

http://dx.com/p/ssc-z7-900lm-led-emitter-white-silver-20mm-dc-3-6-4-2v-171641

Model SSC-Z7
Color White + Silver
Quantity 1
Material Silicone resin + semiconductor + Aluminum PCB
Emitter Brand SSC
Emitter Model SSC-Z7
Output Power NO
Luminous Flux 900lm
Base Size 20mm
Driving Current 2800mA
Voltage 3.6-4.2 V
Application For LED DIY project
Other Feature Ultra-bright and superb quality
Packing List 1 x SSC Z7 LED emitter