SMOK brings you this magnificent power, completely changing your vaping experience. The TFV8, is the ultimate sub-ohm atomizer. The TFV8 utilizes 4 unique, patented Turbo Engines: V8-T8 (6.6T), V8-T6 (6.0T), V8-Q4 (5.0T), and the V8 RBA (4.0T-X). These add up to make the TFV8, a real Cloud Beast! TFV8 The revolution of coils and airflow make the TFV8 a high-performance vapor beast! Turbo Boosted Engine Coils, Turbo Boosted Bottom Air-slots, Turbo Boosted Heating Air-tube, and Turbo Boosted Drip Tip. These designs make TFV8 powerful! Its a BEAST that makes HUGE clouds. Are you ready? Compared with the small 4 air slots of TFV4, TFV8 has 2 bigger adjustable air slots on the bottom, with an increased airflow of 18%. It can be adjusted freely, which allows you to have a unique experience. TFV8 increase its heating air tube to match the increased air slots for higher airflow efficiency. Its diameter increased by 15%, and area increased by 30% than TFV4 design. TFV8 sports a large caliber delrin drip tip, for increased airflow. Want to cloud out a room? This drip tip helps make that a definite possibility! The finish design of TFV8 is the result of thousands of test-modified designs. Each part is carefully designed and the final, polished details are our commitment to bring the ultimate product to every vapor fan. The refill slot and central air chamber of TFV8 tank is bigger than that of TFV4. This makes is more convenient to fill your tank and enjoy more massive clouds of vapor.