1Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. 2This product is a electric heater with automatic constant temperature and energy saving. 3This PTC ceramic air heater has the characteristic of surface insulation and high security. 4The product contains 90 degrees to restore thermal protection, suitable for direct air blowing or lifting of not more than 5 cubic meters of ambient temperature. 5Application: air heating, oven, shoe cabinet dry shoes, dryer, dehumidifier, greenhouse warm room, breeding incubation and other closed space air convection heating.Features:Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency.This product is a electric heater with automatic constant temperature and energy saving.This PTC ceramic air heater has the characteristic of surface insulation and high security.The product contains 90 degrees to restore thermal protection, suitable for direct air blowing or lifting of not more than 5 cubic meters of ambient temperature.Application: air heating, oven, shoe cabinet dry shoes, dryer, dehumidifier, greenhouse warm room, breeding incubation and other closed space air convection heating.Specification:Material: AluminumWeight: 650g/22.9ozRated voltage: 220VRated power: 300W-500WAt 24 ambient temperature, the heater power is about 300W;Under 0 environment, the heater power is about 500W.The surface temperature of the heating insulator is 160 when the ambient temperature is 24.Distance heat insulator surface 1 cm: 90;Distance heating insulator surface 5cm: 80;Distance heating insulator surface 10 cm: 60;20 cm from the surface of the heat insulator: 50.Heater specification: insulation type (surface not charged) PTC ripple heaterFan Specification: 220V AC double-layer ball bearing axial flow fanSize: 125*80*92mm/4.9*3.1*3.6inch (without bracket size); 125*80*104mm/4.9*3.1*4.1inch (with support size)Package List:1 x PTC Ceramic Air Heater