Review on 🚗 Enhance Road Safety with Car Emergency Warning Light: OnReal Roadside LED Flares for SUV, Truck, Bikes, Boat, and Outdoor Use (Includes Batteries) by Aaron Clayton

This light uses a 9 volt battery (included). It has a magnetic base that can be attached to a car (assuming there is still steel left in the cars to be magnetic). So keep it away from your credit cards or data sticks. The device is about the size of the navel of an orange. The button is recessed, a bit small so if you have big fingers use a stylus to press it. The light comes on, then the next press turns on the flash, the next press returns the white light. The advantage of this strobe is its compactness. It even fits in those small glove boxes. Having a spare 9V battery can help you avoid battery drain. I keep a small emergency kit in the car with spare clothes, hat, gloves, boots, socks, triangle reflectors and a few other items. This flash is a good addition as it works as a flashlight or warning light.