Variable voltage and watt
LCD screen displaying watt / resistance / voltage / energy
Carbon fiber battery tube， beautiful and durable
Four airflow holes at the bottom tube to dissipate heat
Red bronze used for all battery connections to improve its conductivity
Lithium cell detachable and rechargeable
Over load protection， over current protection
Low voltage alarm and load detection alarm
Power 7 - 50W adjustable through the upper and lower keys
Capacity: High-rate cylindric lithium cell 26650 (not included in the package)