The Weldon 9x7" LED warning light fits a very similar profile to the more commonly seen Whelen 900 series.  These lights feature a slim profile and very bright LEDs. 
 
- Wiring: 12V DC, power/ground with short pigtail harness; *external flasher unit required for flashing operation*; without a separate flasher, these lights will only steady-burn when power is applied. 
- Mounting: 4 screw mount, drilling required if mounting to flat surface
- Condition: Used/good, bench tested