The Beaver Dam Northern Light Tip Up is designed with a built-in integrated light system for best performance on the ice. Simply push the on/off button to activate the light, then position the flag in the down position, the light will automatically turn off until triggered. When triggered by a fish strike the flag arm is released and the light comes on. Push the on/off button to disengage the light. FeaturesWaterproof compartment holds three AAA batteries (not included)Super bright LED light when a strike occurs and flag is releasedPush on/off button to activate light Packaged dimensions 23.5" X 4" X 3"