Deep inside a cave is not exactly the best place to find out your gear is not delivering as promised on paper. Which is why I did another burn test, in order to check out the two light setups I plan on using in Mexico, i.e. HID 35 with TT 3 and LED 1000 with Flexi II battery. To my surprise both actually performed a lot better than expected!

| | Flexi II | TT 3 |
| HID 35 | 90' | 200' |
| LED 1000 | 195' | |
With more than 3 hours of juice, I should be able to do two decent 90' cave dives in a day without need to recharge in between, or do some extended exploration diving without worries of ending up in the dark.