- Whelen Engineering Mini Justice Super-LED Amber Lightbar - 22in., Magnetic Mount, Model# NT163785 SAE Class 1 certified 4 corner and 4 directional superbright LED modules provide high visibility at every angle Clear polycarbonate lenses are resistant to damage and moisture and are hard-coated to resist scratching and sun damage 10ft., 12V power cord with on/off and pattern control switches 22in.L x 12in.W x 2 1/4in.H