taking advantage of natural solar energy, to allow savings of up to 100%, and suit all kinds of building installation;
it would pump out the interior stale air and excessive heat to improve indoor air circulation,
reduce moisture & harmful mildews,
and help reduce the load on air conditioning and HVAC systems both in Summer & in Winter.
SN2018032: 50W/22.5V polycrystalline solar panel (580x495x25mm),
IP68 brushless DC motor,
14'' Nylon-Fiber-Aluminum compound fan blades,
with front side aluminum mesh fan guard,
fan host material: galvanization steel, size: Φ368x175mm,
10m cable to connect fan host & solar panel,
Packing: 1 set/carton/57*65*30cm (284 sets/20'GP, 657 sets/40'HQ)
SN2018032A: includes 21V*1.5A AC/DC Adapter, wire: 3m,
an inbuilt Smart Controller is included to take care of the power switching between solar panel & AC/DC adapter
The solar DC motor wall exhaust fan here is a developed solar ventilation version from its basic day-working system (#SN2018032) into a Day-Night Nonstop working system (SN2018032A = SN2018032+SN2019013). If grid electricity is available in your location, and you need the fan to continuously always ventilate the house, please take and install this system.
Or, another system that contains battery to realize nonstop running at night while totally free from energy charges: #SN2018002!
Detailed Images
Fan Host Part: dia.368*175mm, flexibly wall mount anywhere

provides excellent air flow while no noise* fully assembled galvanization steeling fan body, finished in unti-UV Black powder coating
* 7pcs compositive nylon-fiber-aluminum fan blades
* highest efficiency with longest lifespan brushless DC motor, IP68 waterproof
* protective aluminum front guard
* 4pcs slidable mounting brackets
* optional 416*416mm Square mounting frame
------ ------ IP68 Waterproof Brushless DC Motor ------ ----

Patented & Unique Made Top Grade MotorVoltage: DC 9~24VPower: ≤ 50W
Size: dia.86mm
Motor Speed: 70~1200RPM
IP Rate: IP68 (waterproof)
Sound: Quiet (< 45dB)
Designed Lifespan: > 10 years
Material: pure copper, high quality ball bearing
warranty: 5 years
Solar Panel Part: flexibly wall mount or roof mount

provides full power when sun shines * 50W/22.5V Polycrystalline solar module* designed tiltable & adjustable mounting base with brackets* waterproof wire connectors* 10m cable to connect with the fan host* generates green & efficient eco energy for the fan to run freely once sunlight is available
AC/DC Adapter Part: small consumption for big power

provides backup power after sunset* small consumption at DC 21V*1.5A (or optionally 18V*1.5A)* workable worldwide with AC voltage 100~240V* 3m cable to connect it with the fan host* designed for energy backup only, as its power supply will smartly be used or not used depending on the solar panel's actual performance
Controller Part: smart system controller that guarantees a lowest electricity bill

if solar panel is supplying direct power at X%
AC/DC adapter will be at (100-X)%
* an inbuilt controller to take care of the power supplies between solar panel & AC/DC adapter - you don't need to do any manual shifting operation - you don't need to worry about any unnecessary energy consumption* 24 hours smartly cooperating the solar supply & the grid supply in a best way for you* designed as small volume while big function* even waterproof too
Standardize Production: Our solar industrial exhaust fan / air suction fan productions run on a well scheduled line, with each fan part be tested before assembly & the fully assembled unit be further 100% tested before package. This standardized production guideline brings our products a high consistency!
Installation & Applicarion: