Fenix HM71R Caving Headlamp - Questions & Answers

Answer: Of course, we only sell cave-suitable lighting! As a minimum they will survive drops and temporary immersion in water, some will also handle extended immersion at depth. IP66 should be the minimum to consider for caving, IP68 will see you through any normal caving abuse.

Answer: The magnetic end on these lamps, while practical and user-friendly, can affect compasses when surveying, so be aware of this! If you're often surveying, you might want to look at the non-magnetic tailcaps or a non-magnetic lamp.

Answer: Charging is built-in on this lamp, using the provided cable.

Answer: This is suitable for use as a main beam. Nothing to stop you using it as a backup light, of course, but there are lighter-weight backup lamps out there.

Answer: Yes, a battery is included with the product.

Answer: We STRONGLY recommend not to! While this lamp does include some protection circuitry, the safety measures built into protected cells are much more reliable and can avoid other battery race conditions. In addition, the lower height of unprotected cells might make them incompatible with the battery compartment in this lamp. For the sake of a few pounds, it's surely worth avoiding a nasty chemical fire on your forehead deep underground! As well as safety reasons, the protection circuit will cut the power when a critical charge is reached. This prevents over-discharge, which can permanently ruin unprotected batteries, for example if the lamp is accidentally left switched on.

Answer: A lithium-ion 21700 battery.