Are solar roof vents noisy?

Generally, they operate quietly, especially compared to traditional mechanical vents, though noise varies by model.

What is the most efficient roof vent?

Efficiency depends on design, size, and conditions; both solar vents and whirlybirds are efficient when properly installed.

Do solar roof exhaust fans work?

Yes, they effectively ventilate roof spaces by expelling hot air and moisture, similar to solar roof vents.

What is the alternative to the whirlybird vent?

Alternatives include solar roof vents, ridge vents, and powered attic fans.

40W Solar Roof Fan for Enhanced Attic Ventilation

Name: 40W Solar Roof Fan for Enhanced Attic Ventilation
Brand: Foshan Lanlishi Technology Co., Ltd
SKU: 2189252422

Guangdong, ChinaFoshan Lanlishi Technology Co., Ltd

US$135.00

5-99 Pieces

US$128.00

100-299 Pieces

US$120.00

300-999 Pieces

US$108.00

1,000+ Pieces

Product specifications

size

shape

power source

Sample price:US$140.00/piece.Request sample

Product profile

Customization

Available

Material

Aluminum

Usage

Workshop, Warehouse Ventilation

Model NO.

ZX320

Flow Direction

Centrifugal

Pressure

Low Pressure

Certification

Rcm, SAA

Motor

DC Brushless Copper Motor

Function

Exhaust Air

Type

Roof Mounted Vent Fan

Airflow

2200CMH

Application

Industry, Commercial, Home ,Farm

Size

12inch

Power Adaptor

15V/2.4A

Rotating Speed

1400rpm

Air Duct

315mm

Transport Package

Pearl Wool, Foam with Outside Carton

Specification

64cm*61cm*30cm, 10kg,

Origin

China

HS Code

84145120

Production Capacity

300PCS/Day

Key features

Dual Power System: Solar power with 15V/2.4A AC adapter for 24/7 operation in low light or night.

Ultra-Quiet DC Motor: Brushless motor operates at under 45dBA with 90,000+ hours maintenance-free life.

Extended Remote Range: 80ft (24m) remote control allows ground-level adjustment of speed and modes.

High Airflow Capacity: Delivers 2100-2200 CMH airflow for efficient heat and moisture removal.

Durable Construction: Monocrystalline panel with tempered glass and aluminum body withstands 130mph winds.

Customizable Colors: Available in black, white, and other custom colors upon request.

Comprehensive Warranty: Includes 2-year standard warranty with optional extended coverage up to 36 months.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExhibition ExperienceFast Delivery

Foshan Lanlishi Technology Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2021-12-31Nearest Port: guangzhou, shenzhenAverage Response Time: ≤0.07h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory with 16 years of international trade and export experience, supported by one production line and three experienced export staff. It provides OEM and ODM services, including customization from samples, designs, minor customization, flexible customization, and full customization. However, it reported no new products in the past year and has no available SDK. Service infrastructure is limited: it has no in-stock capacity, overseas warehouse, overseas showroom, overseas agents, or branches, and no valid manufacturing-capacity contract with its associated subcontractor. Service procedures exist in several areas, but written records are incomplete or absent. The supplier has participated in the Hong Kong Autumn Electronics Fair and reports OEM service for well-known brands, but the provided information does not identify customer names or case details. Financial credibility cannot be favorably assessed from the provided records, which report zero operating revenue and...

Supplier typeThe supplier is explicitly classified as a factory and reports one production line. Its 16 years of international trade experience and export staffing indicate an established manufacturing-and-export orientation, although the production footprint shown is limited.

After-Sales capabilityThe supplier has procedures for complaint handling and corrective/preventive actions, but no written records for either, and its service-capability assessment procedure is not written. It also lacks in-stock service, overseas warehouses, overseas showrooms, overseas agents or branches, and offers overseas services in zero countries; this indicates documented-process and international service limitations.

Financial creditThe records report zero operating revenue and zero profitability indicators for the last year and the stated two- and three-year periods, along with a zero current ratio where reported. These figures provide explicit adverse evidence regarding demonstrated financial operating performance, although the slices do not explain the data context or verify financial statements.

R&D capabilityThe supplier offers ODM service and multiple customization modes, but reports no new product information in the past year and no available SDK. The evidence supports design responsiveness but shows a deficiency in recent product-development output and SDK availability.

Production capacityThe supplier is a factory with one production line, a reported average lead time of within 15 working days in both peak and off-season, and ten qualified service-capability suppliers. However, it has no valid manufacturing-capacity contract with its associated subcontractor and no in-stock capacity, creating a documented capacity-management limitation.

Customization capabilityThe supplier explicitly provides customization from samples, designs, minor customization, flexible customization, and full customization, as well as ODM and OEM services for well-known brands. These stated offerings demonstrate broad customization capability despite the lack of recent new-product information.