Modefined Sirius 200W Box Mod The Modefined Sirius 200W Box Mod is constructed of durable die cast Zinc Alloy and is powered by two high amp 18650 batteries which are accessible through the bottom battery door sled. Its ergonomic chassis has anodized aluminum faceplates for a premium feel and features an easy-to-use 4 button design with an intuitive side mounted display screen. The 510 connector is secured in place by two screws and is made of solid Stainless Steel with a spring loaded Nickel plated Brass pin for accurate and optimal conductivity. Modefined combines quality, high performance and versatility making the Sirius Mod an excellent choice for any vaper. Modefined Sirius 200W Features: Sold Stainless Steel 510 Connector Die Cast Zinc Alloy Construction Wattage Range: 7W - 200W Output Mode: VW / TC-Ni / TC-Ti / TC-SS / TCR/ BYPASS Temperature Range: 100°C - 315°C / 200°F - 600°F Two High Amp 18650 Batteries (Sold Separately) SIGELEI FUCHAI DUO-3 BOX MOD The Sigelei Fuchai Duo-3 175W Mod is a new Fuchai device that has a maximum output range of 175W and a full color display that displays color specific zones for easier readout and visibility. Its 0.1 to 3.0 ohm atomizer resistance range allows for various styles of vaping, including temperature control. The Fuchai Duo-3 features both TCR and AFR functionality, greatly extending precision and customization. Power preheat, in which a user can set wattage and time dials output to ramp or decrease appropriately, and a temperature compensation mode that can compensate for fluctuations in temperature, combine to create a very sophisticated output capability.The full color display screen is vertically oriented and displays a large amount of essential data, from detailed battery state and battery life meters, to output voltage, resistance, wattage, and even a puff counter. With its sleek deisgn, the Sigelei Fuchai Duo-3 175W TC Box Mod is a versatile device that can accompany atomizers up to 32mm in diameter! SIGELEI FUCHAI DUO-3 175W TC MOD Features: Big fire button, good hands feeling Supports 2pcs 18650 batteries ( not included ) Wattage range: 10 - 175W TC range: 100 - 300 Deg.C / 212 - 570 Deg.F Magnetic cover Output voltage: 1 - 7.5V Output mode: Power / TC（Ni200 / Ti1 / SS / TCR ) Resistance range: 0.1 - 3 ohm Charging current: DC 5V / 2.5A Material: zinc alloy Thread: 510 Pioneer4you IPV Vesta 200W Box Mod The Pioneer4You iPV Vesta 200W TC Box Mod presents a modernized workhorse device, integrating the latest YiHi SX-410 Chipset capable of outputting up to 200W paired with one of the most sophisticated temperature control suite in a streamlined chassis. The architecture structural is design to fit comfortably in-hand, constructed in a durable Alloy element with soft curvature contours. The OLD screen is intuitive with an organized matrix that provides essential data at a glance, with two adjustment buttons positioned on top to make it easy to adjust the device with a single hand. Pioneer4you IPV Vesta 200W Mod Features: Powered by SX410 chip Wattage range: 10 - 200W Supports 2pcs 18650 batteries ( not included ) Thread: 510 Resistance range: 0.15 - 3 ohm Diameter: 22mm TC range: 100 - 300 Deg.C / 212 - 572 Deg.F Material: zinc alloy Above all is special and unique box mods, which is your favor? In my opinion, I like the FUCHAI DUO 3, how about you? show me your mind.