Affordability - Based on life expectancy, battery type, battery and replacement parts, warranty, accessories, technical support and maintenance.

Capability - Based on light output, durability , multiple power sources, environmental conditions, multi-color light beam, adjustable beam, flotation, battery power level indicator and battery charging indicator.

Deployability - Based on battery readiness, quick-release charger, portable/mountable charger and ease of initial setup.

Maintainability - Based on battery recharge time, replacement parts, battery replacement, ease of repair, bulb replacement, ease of cleaning and rechargeable battery shelf life.

Usability - Based on ease of operation, versatility, switch function, weight, size, weight distribution, self-defense weapon and heat output.