Features: This waterproof and dustproof battery cartridge offer a built in timing function for efficient power management, securely holding two AA batteries to provide reliability 3V output. Featuring stainless steel spring clips and a durability plastic construction, the battery holder ensures easy installation without damaging parts, with high strength and toughness for long last use. Ideal for enthusiasts and outdoor adventurers who need dependable power sources for projects requiring timed operations and environmental resistance. Perfect for outdoor scenario like camping or gardening, where the waterproof battery holder with timing function conserves energy by cycling 6hours on and 18hours off. Enhances your tool setups with this versatile battery box, combining simple wiring, dustproof protections, and energy saving features for seamless integration into various applications. Specifications: Product name: Outdoor 2 AA Batteries Box Applicable models: for 2xAA batteries Color: black/white Input:3V, Output:3V Product function: timer switching, timer on + constant light + off, timer 6 on and 18 off Type: two functions/three functions/eight functions 6Option Type Package Includes: 1pc Battery Box(Batteries is not included) note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.