6.5 Inches by 6.5 Inch Incandescent Beacon Strobe LightBuyers Products Tall 6. 5 Inch Wide Incandescent Beacon features one flash pattern and an amber colored lens. The 12 24V beacon can be permanently mounted to the end of a 1 in. threaded pipe, or surface mounted using three bolts. It features 10 in. blunt cut leads. Lights are backed with a 1 year warranty. Features permanent 3 bolt or 1 in. pipe mounting. Trucks Can be mounted with either a 1 in. threaded pipe or on a flat surface using three bolts.