The Tank light is a conservation friendly night light. It houses a turret with a cannon which diffuses the emitted light.
Get one of each to drain your AA and 123 batteries before tossing them.
AA version can run on either 3 or 4 regular AA or rechargeable AA batteries. Tank Night Light - 4AA
123 version will run on 2 or 3 CR123 or R123 batteries. Tank Night Light - 123
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It has 3 levels of brightness, photo sensor, battery level indicator, and you can set the sensitivity level. The very intelligent UI remembers the last state which was set.
You can use partially spent batteries to run this light.
Runs about 2 weeks on almost dead batteries.
Specifications for the 3 123 Tank Light
High – 5mA
Medium – 2mA
Low – 0.5mA
High Sensitivity: - ~5lux to turn on, ~15lux to turn off
Medium Sensitivity – 22 lux to turn on, 28 lux to turn off
Low Sensitivity - 106 lux to turn on, 140 lux to turn off
Notes:All measurements taken in Medium Output level.
Photo sensor sensitivity varies from unit to unit.Numbers are typical and only represent approximate levels of sensitivity.Some units can be more sensitive