Apeks Luna Mini Dive LightThe Apeks Luna has a capacity of 1000 lumen, a burn time of 1. 5 to 6 hours and comes in four different colors. The Luna Mini is small, has an easy grip, is easy to operate and doesn't need to be opened to be charged. All of this makes the Luna Mini great to use as a back up light. Apeks uses the ITM (Intelligent Thermal Management) to monitor the temperature of the LED, to dim the power if the torch gets too hot.