Battery-powered LED flashing lights • Magnetic mount attaches securely to back of vehicle or trailer • 18 bright, highly visible diodes • 3-way switch for flashing or steady-on operation • 180 flashes per minute in flash mode • Can flash for 36 hours or more on one set of alkaline batteries • Can be optionally configured as self-standing easel. • Sealed lens and base • Requires 4 AA batteries (not included) • DIMENSIONS: 6" x 4"