Efficiently power up your StealthALERT sensor with our USB Solar Charger. Enjoy unlimited battery life while utilizing renewable energy. Never worry about running out of power again. Keep your StealthALERT powered for years with this 3W and 5V micro-usb solar charger that fits into your StealthALERT charge port. Perfect for monitoring storage units, trailers, or containers in the field. Micro-USB Solar panel max power 3W Solar panel max output 5V/0.5A IPX6 Waterproof Cable length 12ft / 365cm