CZ-760-2A - 500-2000mA - 20mm Buck LED/Laser Driver 6-12V 5-Function

Product Specifications:
Input Voltage:
6V - 12V (2 / 3 x Li-ion)
Output:
250mA to 1000mA
Mode(s):
5-Mode:
Low (250mA) > Med (500mA) > High (1000mA)
*Output current may vary slightly (<100mA) depending on input voltage and/or forward voltage of diode.
Feature(s):
1. Constant current buck driver
2. Reverse polarity protection
3. Minimal thermal buildup
4. Short circuit protection
5. Solder and rosin residue may be present
Dimensions:
20mm ( Dia. ) 
Weight:
2g
Package Content:
1 x Driver Board
This is a direct fit in my DIY Host.