The EVO Formance Lighting Strobe Expansion packs offer super-intense strobes that are small enough to be adhered literally anywhere. This affect was achievable by using new ultra-flat and incredibly bright LED"s (The same ones that are used as a "Flash" in cell phone cameras). This kit is an expansion pack for part number 93187 (controller Kit) that includes two individual lighting strobes. Up to twenty strobes can be controlled with a single controller (sold separately). Made by enthusiasts, for enthusiasts. Don’t Change… Evolve