Reviews Optical Contrast Ratio Meter

Dell P2418HT 23.8\ Touch Monitor - 1920x1080 LED-LIT, Black

• Screen Size 24 inch, Touchscreen Type 10 point touch, Cabinet Color Black, Usage Consumer, Panel IPS,.
• Display Type Full HD, Maximum Resolution 1920 x 1080, Recommended Resolution 1920 x 1080, Viewing Angle 178 degree (H) / 178 degree (V), Pixel Pitch 0.275 millimeter, Display Colors 16.7 Million.
• Brightness 250 cd/square meter, Contrast Ratio DCR 8,000,000:1 (1,000:1), Response Time 6ms (GTG), Input Video Compatibility Analog RGB, Digital, Connectors D Sub, HDMI, DisplayPort, DVI 1.
• Power Supply AC 100/240 Volts (50/60 Hertz), Power Consumption Power Consumption Operational: 18 Watt, VESA Compatibility Mountable 100 x 100 millimeter, Dimensions & Weight Dimensions (H x W x D), 12.70 inch x 21.20 inch x 9.30 inch w/ stand , Weight, 6.88 pounds.

Rockville BluTube LED 70W Bluetooth Tube Amplifier/Home Stereo Receiver with Blue Illumination, Optical Input, Sub Output

• Rockville BluTube LED 70W Bluetooth tube amplifier/home stereo receiver with blue Illumination, optical input, Sub output.
• Rockville blutubeled audiophile grade tube amplifier with Bluetooth. Black Color with blue illuminated tubes and blue illuminated knobs. 25 watts x 2 RMS @ 8 ohm. 35 Watts x 2 RMS @ 4 ohm. (1) set of RCA inputs to connect to any audio device like a TV, laptop, or MP3 player, etc. Optical input..
• Coaxial input. Sub output. Tube Amps do not hard-clip even at high volumes and are extremely efficient. Due to this the amp sounds more like double the rated power! . Built in Bluetooth with 33 foot range. Built-in preamplifier. Headphone output. Vu meter. Adjustable bass and treble (2 band equalizer)..
• Usb input for music files from USB thumb drive. Rear speaker terminals: banana Plug/ binding post outputs for 2 speakers. Frequency response (3dB): 22hz-20khz. Input impedance: 47Ko. Input sensitivity: 300mV. Output Impendence: 4-8ohm..
• Total Harmonic distortion): ≤0. 02%. Signal-to-Noise ratio(s/n): ≥86dB. Bluetooth: 2. 1+Edr. Usb: Supports WAV/MP3/WMA/APE/FLAC. 110V. Unit weight: 6. 6 lbs. Unit dimension: 10. 6"X10. 2"X5. 1".

Dire Straits

• Features of BluTube WD Rockville BluTube WD Audiophile grade tube amplifier with Bluetooth Color 2-Tone silver with wood accent 25 watts x 2 RMS @ 8 ohm 35 watts x 2 RMS @ 4 ohm (1) set of RCA inputs to connect to any audio device like a TV Laptop or MP3 player etc.
• Optical input Coaxial input Sub output Tube amps do not hard-clip even at high volumes and are extremely efficient Due to this the amp sounds more like double the rated power!.
• Built in Bluetooth with 33 foot range Built-in Preamplifier Headphone output VU meter Adjustable bass and treble (2 band equalizer) USB input for music files from USB thumb drive.
• Rear Speaker Terminals Banana plug / binding post outputs for 2 speakers Frequency Response ( 3dB) 22Hz-20kHz Input Impedance 47kO Input Sensitivity 300mV Output Impendence 4-8ohm Total Harmonic Distortion(THD) ≤0 02%.
• Signal-to-Noise Ratio(S/N) ≥86dB Bluetooth 2 1+EDR USB Supports WAV/MP3/WMA/APE/FLAC. Unit weight 6 6 lbs Unit dimension 10 6″ x 10 2″ x 5 1″.

ViewSonic PJD8653WS WXGA 1280x800 DLP Projector (Black)

• WXGA (1280x800) 16:10 3000 Lumens Ultra Short Throw Projector with a 15,000:1 Dynamic Contrast Ratio, Vertical Digital Keystoning, and a Screen Size of 80-Inches from 2-Feet.
• With advanced color technology and outstanding sharpness, this feature-rich projector also provides a vast selection of inputs while offering industry-leading durability and dust-resistance.
• Certified with AMX Device Discovery, the PJD8653WS easily integrates into any size campus or enterprise.
• Convenient classroom friendly design with up to 7,000 lamp hours (Eco mode), stereo 8W built-in speakers, optical focus and zoom, and a snow white finish.
• Ethernet LAN (RJ45), 3.5mm Audio In/ Out, 3.5mm Mic In, HDMI, VGA In (x2), VGA Out, Composite RCA, Component, S-Video, and Mini USB.
• Product Dimensions: 14.1 x 9.9 x 14.4 Inches.
• 3-year limited warranty on parts and labor, 1-year limited warranty on lamp, 1st year free Express Exchange service with product registration.
• Box includes PJD8653WS Projector, Power Cable, VGA Cable, Remote Control with Batteries, Quick Start Guide, and ViewSonic Wizard DVD.
• Compatible with Mac, and Windows, can be connected with DVD players, Blu-ray players, Amazon FireTV, AppleTV, Goo....

ONOAYO 5G WiFi Outdoor Projector 4K Supported, 9800L 400 ANSI LM FHD Native 1080P Bluetooth Projector, ±50° 4P/4D Keystone & 50% Zoom, Full Sealed Optical/LCD/LED Wireless Home Portable Projector

• ... to mobile devices and work as a speaker. Built-in dual 10W Hi-Fi stereo sound speaker and Super BT Sensor, ONO1 1080P projector receives signal from devices over 50ft away and creates extraordinary sound. With the last 5G WiFi, more smoothly and faster than 2.4G WiFi..
• ✦【400 ANSI lumens & Native 1080P & 12000:1 Contrast Ratio】Our ONO1 movie projector equips 400 ANSI lumens brightness, 1920x1080P high-definition, contrast ratio of 12000: 1 and outstanding color reproduction, depicts crystal clear and vivid picture. Tiny hair of a bird and a man’s subtle expression can be clearly visible. 300’’ big projection screen brings stunning, immersive viewing experience, not only suitable for watching movies, but also perfect for playing games and watching sports competitions..
• ✦【User-friendly 4-Point Keystone Correction & ZOOM Function & Backpack Included】The advanced 4D/4P Keystone can adjust Vertical and Horizontal angle ±50° much easier than others, just one click on the remote to go to the adjusting page. With ZOOM function, ONO1 HD 4K projector can reduce the image size to 50%. It also has 360°flip function, support front, rear and ceiling installation. Cumbersome setting by moving the home projector manually would be a thing of t....

Dell S2440L 24-Inch Screen LED-lit Monitor (Discontinued by Manufacturer)

Hayluk 100-inch Projector Screen,4k HD Ambient Light Rejection ALR Projection Screen,16 9 Ust Ultra Short Throw Movies Screen,Indoor Video Home Theater,Edge Free Fixed Frame Screen

• ...f this structure is that the screen brightness is basically the same, which greatly increases the viewing area..
• 【High-Quality Material&Eye Protection】The video projection screen adopts functional layers such as PET and transparent PU, which absorbs ambient light, improves viewing angle brightness, increases contrast and color saturation,No radiation, effective protection of eye vision.
• the fixing frame adopts high-quality aluminum alloy material to ensure installation stability. At the same time, it also ensures the lightweight of the overall weight and reduces the load-bearing..
• 【Borderless Design and Installation】Cinema Projector, 100" Diagonal, 49"H x 87.2"W Viewable Size, 16:9 HD Aspect Ratio, Overall Assembly Size: 49.8"x 88"x 0.98".
• Black Barrier The particularity of the anti-wrinkle projection screen structure makes it directional, otherwise the gain effect will be lost, and the screen surface cannot be scratched, once damaged, it cannot be repaired, so it needs careful maintenance during use. When using, please follow the installation manual for installation..
• 【ALR Material & High Contrast】 The home theater curtain adopts ambient light suppression technology, the gain uniformity reaches 0.8, the viewing angle can reach 178°....

PHOOTA Mini Projector, 2019 Upgraded Portable LED Video Projector with 50,000 Hrs LED Lamp Life, 2400 Lux Full HD 1080P and 170'' Display Supported, Compatible with HDMI, VGA, USB, AV, Laptop

• 60% BRIGHTER THAN OTHER LED MINI PROJECTORS: The PHOOTA Mini Projector with an Full HD 2200 lumen brightness and a 1500:1 contrast ratio, is ideal for home entertainment in the dark, providing a new & unprecedented viewing experience for you..
• PORTABLE AND QUIET: With dimensions of just 215*151*76mm, it's easily portable. In addition, the Pure copper heat dissipation technology of this projector provides awesome heat dispersion and the fan sound has been cut in half using noise suppression technology..
• HIGHEST 800 x 480 NATIVE RESOLUTION: 1920*1080 supported resolution, 4:3/16:9 aspect ratio, 50,000+ hours lamp lifetime, 35 to 170-inch display size with a projector distance of 1.22 to 3.77m. For the best viewing experience, we recommend a projector distance of 2-2.5m with an image size of 130''..
• SUPPORTS MULTIMEDIA PROJECTOR: PHOOTA projector is sutable for TV Box, Amazon Fire TV Stick, ChromeBook, PCs, Laptops, Tablets, Blue-ray DVD player, USB Flash Drive, Media players, iPad, iPhone, Android Smartphones ( Wireless HDMI Dongle not included)..
• LEADING WARRANTY: PHOOTA projector offer our customers a 3-year 100% Money Back Guarantee.If your projector has any quality issues, please contact our customer service immediately. We will definately help you sol....

Dell UltraSharp U2414H 23.8” Inch Screen LED Monitor

• Diagonally Viewable Size: 60.47 cm / 23.8 Inch (31.5-inch wide viewable image size).
• Panel Type, Surface: In-plane switching, anti glare with hard coat 3H.
• Contrast Ratio- 1000:1 (typical), 2 Million:1 (Max) (Dynamic Contrast Ratio).