The Dotworkz D3 Solar Heater/Blower protects cameras by using a low wattage heater "ring" that goes all the way around the camera (360 deg. Horizontal) and is affixed directly to the dome lens having 4 watts of direct heating. This allows the Solar version to keep the lens clear of fogging more efficiently.Features• Thermostatically controlled Heater Blower System• IP and analog PTZ camera compatible• Thermostatically controlled De-Icing and Heating element• Virtually indestructible Polycarbonate Thermal Plastic alloy• Internal bracket included for perfect fit for PTZ, megapixel or mini domes• Switchable upper and lower camera mounting locations for maximum versatility and internal storage space• Internal mounting space for: routers, cell networks, hard drives,UPS, WiMAX, mesh hardware, etc.• IP66 rated against dust, water and salt water air & IP68 water proof connection ports• 60% bigger than our D2 models perfect for adding Wireless, camera and NVR as a single install system