☆ Selling Points The instruction manual for MAG-LITE products states, "Use only alkaline batteries." However, this product has been modified to allow the use of a 10440 lithium-ion rechargeable battery (※ rechargeable battery 3.7V), which is the same size as a AAA alkaline battery. Furthermore, it is a "hybrid specification" that can also use "A23 alkaline batteries," which are similar in shape to a size N battery and have a voltage of 12V. ■ About MAG-LITE MAG-LITE flashlights are manufactured by Mag Instrument, Inc., founded in the United States in 1955. The sturdy body material is machined from aluminum alloy used in aircraft, and anodized processing (anodic oxidation treatment) is applied not only to the outside but also to the inside of the body to enhance corrosion resistance. Due to its precision and high degree of completion, it is adopted by law enforcement agencies around the world and is a handheld light selected as a permanent collection item at the Museum of Modern Art in New York. ■ MAG-LITE is losing its leading role with the advent of the LED era. Due to the delay in commercializing LED-compatible MAG-LITE products, third-party kits (image 4) that convert MAG-SOLITAIRE to LED have been distributed on通販 sites, etc., but it was difficult to make the converter part thin, and most products were used with a gap of about 2mm (as shown in image 5) between the head and the body where the LED unit was installed. ■ In 2013, MAG-SOLITAIRE LED specifications were put on the market. The specifications, which have not changed at all in body size (L=81mm, φ12.7mm) and design even after being converted to LED, are the result of the manufacturer's ingenuity, and are vastly different from the appearance of the gap created by the aforementioned third-party kits. ■ Additional Information When operating with A23 alkaline batteries, a "constant current diode integrated spacer" is loaded into the body along with the battery. The structure connects a constant current diode in series with the LED, which plays a role in maintaining a constant current. ■ Accessories for this MAG-SOLITAIRE ・A23 alkaline battery x 1 ・Modified spacer x 1 ■ Additional information will be posted in the comments section.