Many LED flashlights utilize a Lithium battery to drive the LED. Although these flashlights are typically quite small, the downside is the high cost of battery replacement. Some lithium flashlights require special tools to remove the battery. Also, finding a replacement battery can be a challenge.
Our marshalling wands are designed to work with an ordinary 'AA' battery. Replacement costs are about 1/10 the cost of Lithium's. In addition, battery replacement is very easy, requires no tools and the batteries can be purchased almost anywhere.
We recommend that simple 'AA' alkaline batteries are used in our wands for best performance.