Brightness in these listings varies widely—reported values run from about 70 lumens up to 8,000 lumens. Many entries fall at the lower end (hundreds of lumens) for truly compact units, while a few higher-output models list several thousand lumens.
Resolutions in these listings span from low-resolution formats up to full HD. Distinct values shown include 800 x 480, 1280 x 720, 1080 x 1920 (portrait), 1920 x 1080 (landscape), and one entry listing 1080 x 1080.
Power options vary: many listings show no internal battery and require external power, a subset include built-in rechargeable batteries for true cordless use, and a few note compatibility with external battery packs to extend portability.
Most listings report lamp or LED lifespans around 20,000 hours. Other values shown include 30,000 and 50,000 hours; a few listings either give a time-in-years entry (e.g., “2 years”) or do not specify bulb life.
Both LCD and DLP projection technologies appear in these listings. Some models are described as using LCD/LED light sources, while at least one listing explicitly references DLP projection.
