sibyrnes
Newly Enlightened
I have been using flashlights all my life but I am finding out I am out of touch with many of the newer models. I recently saw a used Surefire Backup for sale on another forum. After researching the model I was impressed with the specs so I bought it. Upon using the light I was a little disappointed in the performance and have since learned that I have an older model. There is no model number, only a serial number. What do I have here?