Product details:

Strobe Module, 12Vdc, Blu, Base Unit Required (Sold Separately). No. Of Tiers: 1, Voltage: 12 Vdc, Light Function: Strobe, Light Type: Xenon Strobe, Stack Configuration: Blue, Mounting Type: Pipe;surface, Base: 101Bs-E1, Tier 1: Blue, Approvals: Ul;cul, Comments: Base Unit Required For Operation Sold Separately. See Accessories.