2 Clear/White LED Strobe Light 4" Round Grommets, Pigtails 2 Round 4" White LED Strobe Lights With 24 Super Bright Diodes When Connected to The Same Circuit, These Lights Will Flash Simultaneously Light Dimensions: Length: 4", Width: 4", Height: 7/8" Includes 2 Rubber Grommets To Mount Lights With Grommet Dimensions: Outside Diameter: 5-1/4", Inside Diameter: 4-1/2", Depth: 1"