1. With 2 LED at buttom of patent metal Penstar LED pen light suitable for writing and reading in dark and work as touch for lighting in dark.
2. Economy: patent metal LED pen light use 1xAAA battery can last 20 hours.
3. Environment protect: Both battery and pen core in the patent metal LED pen light can be replaced; while old LED pen light is disposal and one-time use.
4. Patent metal LED pen light is welcomed by: Doctor, Nurse, Waitress, Police, Students, Businessman, Traveller,etc.
