Specifications: Size: 26*52mm Capacity: 2ml (TPD) Material: Stainless Steel+Pyrex Resistance: 0.2Ω (TPP-DM2), 0.15Ω (TPP-DM3) Size: 90*54*29mm Material: Leather + Zinc Alloy Output Power: 5-200W Output Voltage: 0-12V Resistance range: 0.05-3.0Ω Charging voltage: 5V/3A Battery: 2x 18650 (Not included)