E-Tac Light Kit from Elvish Tac. 

Features:

• Motion Sensor Auto On/Off
• LCD Display with Back Light
• CNC Aluminum Body with Carbon Fiber Panel
• Four Mounting Solutions
• Single Color LED Light with 8-32 Thread
• Rechargeable 600mAh Li-ion Battery with 100 Hours Runtime Per Charge at level 7
  
  • 600 Hours at Level 1 Brightness
  • 30 Hours at Level 15 Brightness
• Fifteen Brightness Levels with Memory

Includes:

• (1) Light Module
• (1) 8-32 Led Cable
• (4) Mounting Solutions
• (1) Charging Cable
• (1) Wall Charger
• (1) Car Charger

Additional LED light cables are available here.