1. Micro Aliens are great for regulated devices and are intended for use with RDA/RTA
2. Aliens are great for single battery mech devices, big airflow RDA’s like the Goon’s and similar. It can also be used in RTA’s. but they "drink" juice like no tomorrow.
3. Quad Core Aliens are the top of the range and intended for every single RDA, RTA or RDTA. They provide exceptional flavor in both single and dual coil.
All coils come packaged in a set of two and is made from high quality Sandvick Ni80 wire.
Regular cleaning of the coils will result in longevity of your coils and due to the high quality wire used in the crafting process, they should last up to a few months.
Give them a try - you will not be disappointed.