A very interesting and capable miniscule light 1 : Do not use it if you want it as pristine and shiny as it was when you received it, a week of daily use will rust it  2 : It doesn't have charging capability built-in (the charger is a brass looking cap that screws on top of the battery)  3 : Keep in mind that the 10180 battery is a bit hard to find  4 : the threads need a bit of lubrication (i used a lithium based grease)  Aside from the mentions above the light is great, the Nichia emitter is very good especially for reading and inspection, the battery lasts more than a hour(20 minutes at full brightness), the recharge time is around an hour,  it has a photoluminescent reflector around the emitter that helps to find the light at pitch dark and the beam pattern is very even with no darker or brighter spots

A very interesting and capable miniscule light 1 : Do not use it if you want it as pristine and shiny as it was when you received it, a week of daily use will rust it  2 : It doesn't have charging capability built-in (the charger is a brass looking cap that screws on top of the battery)  3 : Keep in mind that the 10180 battery is a bit hard to find  4 : the threads need a bit of lubrication (i used a lithium based grease)  Aside from the mentions above the light is great, the Nichia emitter is very good especially for reading and inspection, the battery lasts more than a hour(20 minutes at full brightness), the recharge time is around an hour,  it has a photoluminescent reflector around the emitter that helps to find the light at pitch dark and the beam pattern is very even with no darker or brighter spots

A very interesting and capable miniscule light 1 : Do not use it if you want it as pristine and shiny as it was when you received it, a week of daily use will rust it  2 : It doesn't have charging capability built-in (the charger is a brass looking cap that screws on top of the battery)  3 : Keep in mind that the 10180 battery is a bit hard to find  4 : the threads need a bit of lubrication (i used a lithium based grease)  Aside from the mentions above the light is great, the Nichia emitter is very good especially for reading and inspection, the battery lasts more than a hour(20 minutes at full brightness), the recharge time is around an hour,  it has a photoluminescent reflector around the emitter that helps to find the light at pitch dark and the beam pattern is very even with no darker or brighter spots

great little light! perfect for the house keys bright!

great little light! perfect for the house keys bright!

great little light! perfect for the house keys bright!