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Shenzhen Roonwin Technology Co., Ltd Shenzhen Roonwin Technology Co., Ltd

Home theater Projector OEM

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2026.08.26

Noise Reduction Methods for Loud Projector Fan Noise

High fan noise is a common problem of projectors, which will produce obvious buzzing and rotating friction noise during operation, affecting the quiet use environment of home theaters, offices, and classrooms. The main source of projector noise is the built-in heat dissipation fan. With the increase of service time, the fan will accumulate a large amount of dust, hair, and debris on the blades and bearings. Dust accumulation will increase the weight of the fan blades and cause unbalanced rotatio

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2026.08.26

Cleaning Tutorial for Black Dots on Projector Images

Black dots, black spots, and shadow spots on the projector screen are typical picture faults that affect viewing, and most of them are caused by internal dust pollution or component failure rather than external screen problems. When tiny dust particles, lint, and debris enter the projector’s internal optical path and adhere to the light tunnel, optical filter, lens group, or DMD chip, they will block part of the light source, forming fixed black dots on the projection picture. The longer the equ

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2026.08.26

Precautions for Long-term Storage of Projectors

Long-term idle storage of projectors requires standardized maintenance, otherwise it will lead to component aging, lens mildew, circuit failure, and other problems, resulting in equipment failure and inability to use normally. Many users directly store the projector in cabinets or corners after use, ignoring the impact of environmental humidity, temperature, and dust on precision components. The projector’s internal optical lens, circuit board, and bulb components are very sensitive to moisture.

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2026.08.25

White Plastic Screen vs Glass Fiber Screen: Which Is More Suitable for Home Use

White plastic screens and glass fiber screens are the two most mainstream household projector screens, with different material characteristics, display effects and applicable scenarios, and users need to choose according to their home environment and usage needs. White plastic screens are made of high-purity plastic coating material, with the advantages of low price, soft texture, foldable storage and no crease. The surface of the white plastic screen is smooth and flat, with uniform light refle

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2026.08.25

Effect Comparison of Household Projector with Anti-light Screen

Anti-light screens are professional matching accessories for household projectors, which are specially used to solve the problem of picture fading and blurring caused by ambient light interference, and their use effect is significantly different from ordinary white screens in various light environments. In dark night environments with no ambient light, the effect gap between anti-light screens and ordinary screens is small. Both can present clear pictures, rich colors and high contrast, meeting

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2026.08.25

Clear WeChat Video Call Picture with Projector Casting

Many users encounter blurry pictures, distorted images and delayed pictures when projecting WeChat video calls with projectors, which affects the effect of remote family communication and online video conferences. To obtain a clear video call projection picture, the first key is to select a stable high-definition casting method. Wired HDMI connection is the best choice for WeChat video call projection, which can realize lossless transmission of real-time video pictures, completely avoid picture

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2026.08.22

Official Maintenance Channels for Projector Bulb Replacement

Replacing a projector bulb through official maintenance channels is the most reliable way to ensure equipment stability, projection quality, and service life, and it is far superior to third-party replacement in terms of safety and compatibility. Original projector bulbs are strictly tested for power, brightness, color temperature, and heat resistance, matching the equipment’s original optical parameters and heat dissipation design. In contrast, generic or refurbished bulbs on the market often h

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2026.08.22

Correct Lens Cleaning Methods to Avoid Scratches

The projector lens is a precision optical component coated with a special anti-reflection and anti-fouling coating on the surface, which is extremely vulnerable to irreversible scratches, coating peeling, and light transmission damage if cleaned improperly. Many users mistakenly use common household cleaning tools such as paper towels, ordinary cotton cloth, and wet wipes to wipe the lens. The fine wood pulp fibers in paper towels and the hard particles on ordinary cloth will leave tiny scratche

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2026.08.22

Solutions for Projector Automatic Shutdown Caused by Overheat Protection

Automatic shutdown due to overheat protection is a common self-protection mechanism of projectors, designed to prevent high temperature from burning internal precision components, but frequent occurrence will seriously affect the use experience and equipment service life. The core cause of overheat protection is the poor heat dissipation efficiency of the projector, leading to continuous accumulation of internal heat and exceeding the safe working temperature threshold. Long-term dust accumulati

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2026.08.21

sunset Projector wholesaler

  This sunset atmosphere projector is a trending and best-selling digital item with steady orders. Specially designed for atmosphere creation, scene drainage, aesthetic soft decoration and commercial promotion, it serves as a core high-volume model for cross-border wholesalers, offline retailers, gift suppliers and Internet celebrity boutique stores. Different from traditional video projectors with single functions, it focuses on immersive sunset light and shadow atmosphere creation, covering di

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2026.08.21

wholesale compact Projector

  This compact portable projector is a core best-selling model for foreign trade wholesale, supermarket stocking, cross-border e-commerce and offline retail. It features a compact body, all-round configurations, easy portability and high cost performance, perfectly meeting the market demands for lightweight audio-visual and small-scale commercial scenarios. Different from traditional projectors that are bulky, space-consuming and high in transportation cost, this projector adopts an ultra-slim a

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2026.08.21

wholesale outdoor Projector

  This outdoor dedicated projector is an essential device for street vendor operations, night market screenings, outdoor camping, courtyard team building, and open-air commercial performances. It features high brightness, strong anti-light performance, all-weather durability and high cost performance for wholesale. Tailored for complex outdoor scenarios, it completely solves the pain points of ordinary projectors such as faded blurry images, stuttering operation and poor durability in outdoor en

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