Malkoff MDC E2HTV3 EZP (Easy Programmable) 18650 (2CR123 sized) Flashlight. This flashlight can be reprogrammed to use different combinations of the Low, Medium, and High modes. The full output runtime on a 2500mah 16650 battery is approximately 30-45 minutes. The full output runtime on 2x CR123 is approximately 30-45 minutes. The LED is ...