This light from #BrightOutdoors is quite thin, less than a cm thick, and very lightweight. This is the perfect emergency light to keep in you car emergency kit because it will not take up very much room and can be quite useful in many situations that might crop up. It is very bright and could easily be used in first aid situations. Thread a paracord (from your emergency paracord bracelet) through the plastic loop at the top of the light and tie it around your neck or waist and you have a simple hands-free work light or hiking light. You can find this LED disc here.
What did not work for me was the placement of the power button. It is on the back of the light which, when hanging using the included plastic strap, works just fine. However when this light is placed on something magnetic, using the two magnets on the back of the light, you need to remove the light in order to turn it on or off. It would have been a better design choice to put the power button on the front in the center of the LEDs, or even on the thin side.
I received this product at a discount or free in exchange for an honest and unbiased review.