Brand： WELLSEE Category： Solar Sine Wave Inverter Model： WS-P 4000 Weight： 60 kg Size： 400*500*600 mm WS-P Sine wave inverter series WS-P WELLSEE sine wave inverter (also known as WELLSEE pure sine wave inverter) is of high performance representing the highest level in the field of inverter manufacture. It adopts micro-computer to fulfill auto-control. It outputs high quality sine wave AC with high conversion efficiency to provide power supply for electric appliance such as electric fans, refrigerators, air conditioners, computers and so on. Features: Sine wave output : Can offer sensibility load and other kind of loads, such as electric fan、refrigerator、air-condition、 electromotor and computer and so on. Mono-microcomputer controlls the solar inverters: It produces the wave抯 shape and makes the frequency of the inverter stable including auto-controll voltage. Low down the speed of open: When we used high power loads, the inverter can low down the speed of open in order to protect the electrical products on load and itself. Overloading protection: When inverter is connected the excessive loads and the total power of loads exceeds its tolerance, the inverter will be sound and the red LED will get light .Then the inverter will stop working and turn into the self-protection state. Short circuit protection: When the interior of the appliance starts short circuit, the inverter will stop output and lock up. Then the red LED will get light and the inverter will turn into the self-protection state. Discharge protection: When the voltage of the battery is lower than21.5V, the inverter will be sound and the LED will get light. Then the inverter will be stop output and lock up with in 5 minutes. Technical Index: Model WS-P 1000 WS-P 1500 WS-P 2000 WS-P 2500 WS-P 3000 WS-P 4000 WS-P 4500 WS-P 5000 Power (W ) 1000 1500 2000 2500 3000 4000 4500 5000 Input voltage 12V 24V 24V 24V 48V 48V 48V 48V 48V Output voltage 210V～230V No load loss ≤0.5% Output frequency 50Hz、60Hz Output wave Pure Sine wave The half carry Efficiency 90% 90% 90% 90% 92% 92% 92% 93%