overhead projector

Brightness varies widely across the models: pocket projectors start around 55–60 ANSI lumens, mid‑range units are typically around 300 lumens, and higher‑brightness models go up to about 1,500 ANSI lumens.

Projection capabilities vary by model: maximum screen sizes reported run from about 100" on some pocket projectors up to roughly 200" for long‑throw units. Maximum throw distances in the data span roughly from 3.6 feet to about 20 feet, depending on the model.

Options differ by model but commonly include tripod mounting, freestanding placement, ceiling or recessed installation, and built‑in adjustable stands that allow angled or ceiling projection.

Some models are battery‑powered or rechargeable (one specifies a rechargeable battery with up to about 2.5 hours of runtime), while others require mains power or list no battery. A few listings note batteries may be required but not included.

Reported maximum/native resolutions include 640×360, 480×854, 1080×1920 (Full HD orientation), and 3840×2160 (4K).

Wired connections commonly reported include HDMI, USB (including USB‑A), microSD, 3.5mm audio, and Ethernet/LAN on some models. Wireless options include Wi‑Fi with Miracast and AirPlay support and Bluetooth for audio or screen mirroring.

Built‑in audio ranges from small single speakers (for example a 1.5W driver) to multi‑driver setups (examples include two 8W full‑range speakers). Several models also support external audio via Bluetooth or a 3.5mm output.

Reported lifespans vary considerably by model: examples include 30,000 hours and a claim of up to 10 years in one listing, while other entries report much shorter durations (one notes about 0.5 years). Lifespan depends on the light source and usage patterns, so check the specific model spec for the manufacturer’s rated hours.

Common smart and image features reported include fast startup, autofocus, automatic vertical keystone correction, AI object detection, MEMC/frame interpolation, built‑in smart TV OS with casting support, voice‑assistant control buttons, 3D support, low‑latency/game mode, automatic brightness/color adjustments, OTA updates, and auto sleep.

Dimensions vary by model; examples include 2.85" H × 9.95" W × 16.75" D, 5.36" H × 8.6" W × 8.2" D, and 7.9" H × 4.6" W × 3.9" D. Reported weights range from about 7.5 oz and 1.32 lb up to 3.9 lb and 6.39 lb, reflecting pocket, portable, and larger home‑theater form factors.