Whelen Vertex is only 7/8 in height, this small hemispheric LED lighthead is perfect for most applications where size and intensity are critically important. Self-contained unit using an in-line combination lamp driver/flasher. The Whelen Vertex new self-contained LED Hideaway requires only a one inch hole in any composite style head light, cornering light or tail light assembly to deliver true wide angle warning to the front, side and rear of your vehicle… without interference to your vehicle computer and warning equipment! Less than 1 tall, it may also be surface mounted to outside surfaces anywhere on the vehicle!