How About $19.99 Smok Koopor Mini Mod 60W ?
Smok Koopor Mini Mod 60w TC is designed by Smok !
Spring-loaded center pin and stainless steel 510 threads
Magnetic back cover to replace the battery easily
Replaceable 18650 battery (not included)
Micro USB port for firmware upgrade only
Bigger OLED display,LED Color changeable to customize your own box mod
Output power: 1W-60W
Output voltage: 0.8V-9V
Resistance range: 0.2ohm-3.0ohm
Temp control range: 200°F-600°F/ 100°C-315°C