Home cinema projector BenQ W4100I 4K UHD, 3000 lumens

BenQ W4100I is a home cinema projector with native 4K (3840 x 2160) resolution and a lamp light source that delivers up to 3200 ANSI lumens. It uses DLP projection technology and supports an aspect ratio of 16:9, offering high colour depth (1.07 billion colours) and a high contrast ratio for detailed images. The projector includes built-in Wi‑Fi, Bluetooth 5.0 and runs Android 11.0 for smart functionality, making it suitable for movie and multimedia viewing in dedicated home theaters or living rooms.

Advantages

The projector combines 4K native resolution with DLP technology and a bright lamp to produce clear, detailed images in dim to moderately lit rooms. Adjustable throw ratio and 1.3x zoom allow flexible installation distances, while vertical and horizontal keystone correction (±30°) simplify alignment. Long lamp life options and low standby power consumption contribute to economical operation. Integrated Android, Wi‑Fi and Bluetooth provide smart features and easy wireless content streaming.

Suitable for

• Dedicated home theaters
• Living room movie nights
• Multimedia playback and streaming
• Large-screen presentations at home

Key specifications

• Projection technology: DLP
• Native resolution: 4K UHD (3840 x 2160)
• Brightness: up to 3200 ANSI lumens
• Aspect ratio: 16:9
• Contrast ratio (typical): 3,000,000:1
• Colours displayed: 1.07 billion
• Light source: Lamp; service life: 20,000 / 30,000 hours
• Throw ratio: 1.15–1.50
• Zoom: 1.3x optical
• Keystone correction: vertical ±30°, horizontal ±30°
• Built-in OS: Android 11.0
• Wireless: Wi‑Fi (802.11 a/b/g/n/ac, 2.4G/5G); Bluetooth 5.0
• Connections: HDMI, USB‑A (USB 2.0), USB Mini‑B, Serial (RS‑232), 12V Trigger, 3.5 mm audio, S/PDIF
• Built-in speaker: 1 × 5 W
• Power consumption: 330 W (operation); 0.5 W (standby)
• Noise level: 30 dB
• Dimensions (W×D×H): 420.5 × 312.1 × 135.3 mm
• Weight: 6.1 kg

How to use

Position the projector at an appropriate throw distance according to the 1.15–1.50 throw ratio and use the 1.3x zoom and ±30° keystone adjustments to align the image on the screen. Connect source devices via HDMI or USB, or stream content wirelessly using the built‑in Android OS with Wi‑Fi or Bluetooth. Use the 12V trigger for automatic screen control where supported and connect external audio via S/PDIF or the 3.5 mm output if required. Allow for adequate ventilation and place the unit on a stable surface or mount according to the manufacturer’s wall/ceiling mount instructions.

Usage recommendations

For best image quality, use the projector in a dim or darkened room, calibrate picture settings for your viewing environment, and maintain a regular lamp and air‑filter cleaning schedule to preserve brightness and contrast over time.