The Wasserstein 2W 6V Solar Panel is Compatible with Arlo Ultra/Ultra 2, Arlo Pro 3/Pro 4, & Arlo Floodlight . The Arlo Pro 3 solar panel charger has a specially made adjustable wall mount which allows you to easily position your solar charger in the best direction, ensuring maximum sunlight exposure. This Arlo Ultra / Arlo Ultra 2 solar panels specifically works with arlo security camera system wireless and it can serve as a solar power bank to achieve continuous charging. It comes with a 13.1ft/4m long cable for a convenient mounting and charging for Arlo batteries. This solar battery charger is made of weather resistant materials and designed to survive rainy and harsh weather.