2AA waterproof battery box with lid, switch, wires, and timer function

Product Name: Waterproof Battery Holder for 2 AA (Size 5) Batteries (with Timer Function/Wired)
Appearance and Structural Features:
Overall Structure: This is a compact, fully enclosed black waterproof battery holder designed to hold two AA (Size 5) batteries.
Waterproof Sealing Design (Key Feature):
The body is made of durable engineering plastic with waterproof gaskets around the edges.
There are 4 high-strength plastic latches on both sides of the cover, providing strong clamping force when closed to ensure complete waterproofing and dustproofing.
The lid is connected on the other side via a hinge, making it easy to open and close without risk of losing it.
Functional Design (Core Highlights):
Smart Timer Function: There's a black three-position toggle switch on the outside of the battery holder with markings "1 TIMER", "2 ON", and "3 OFF".
1 TIMER: Timer mode (commonly used for LED light strings, etc., to achieve an automatic cycle of "on for several hours - off for several hours").
2 ON: Constant-on mode (continuous power supply).
3 OFF: Off mode (complete power disconnection).
Control Circuit Board: A miniature control circuit board is integrated inside to handle the timer and power management functions.
Electrical Specifications:
Two 1.5V AA batteries connected in series provide a DC output voltage of 3V.
A thin, transparent/white wire extends from the back for easy connection to lights or small electronic devices.
Dimension Specifications:
Length: 82.9mm
Width: 36.5mm
Height: 21.6mm