EVO Formance Lighting strobe kits offer super-intense strobes that are small enough to be mounted literally anywhere using authentic 3M adhesive. This affect was achievable by using a new ultra-flat and incredibly bright LED's (The same ones that are used as a flash in cell phone cameras). This kit comes with a waterproof controller and 4 individual Lighting Strobes. The kit can be expanded to control up to 20 strobes with a single controller by purchasing additional lighting strobe expansion packs (part # 93188, sold separately). Don't Change… Evolve