Please Note: Products are designed and rated for use in the United States using 120 volt current. With or without a transformer, this product is not recommended for use outside the US. Mini Strobe Light features: Speed control dial, strobe flashes slow to fast (Max strobe speed is 10 flashes per second).Mounting bracket. ETL Listed unit with 4' black power cord. This unit does not have an on/off switch, unplug to turn off power.