Honest Buying Guide
The lumens number on a spec sheet and the picture you see on your wall are two different things — for every projector brand in the world. Five minutes here and you’ll read brightness claims like a professional reviewer.
সংক্ষেপে: স্পেক শিটের লুমেন্স সংখ্যাটি মাপা হয় প্রজেক্টরের আলোর উৎসে (LED/ল্যাম্পে) — এটাই সারা বিশ্বের প্রজেক্টর ইন্ডাস্ট্রির নিয়ম। কিন্তু লেন্স ও অপটিক্স পার হয়ে দেয়ালে যে আলো পৌঁছায়, তা সব ব্র্যান্ডের ক্ষেত্রেই রেটেড সংখ্যার চেয়ে অনেক কম। তাই সংখ্যা নয় — আপনার ঘরের আলো, পর্দার সাইজ আর বাস্তব ছবির প্রমাণ দেখে প্রজেক্টর বাছাই করুন। নিচে বিস্তারিত পড়ুন।
Almost every projector brand — global names and budget brands alike — prints the brightness of the light source on the spec sheet. But light has a journey to make before it reaches your wall, and it pays a toll at every step:
The raw brightness of the LED or lamp itself.
Spec-sheet “rated lumens” are measured HERE
Light passes through the LCD panel, filters and lens system.
A large share of the light is lost here — on EVERY projector
The brightness you actually watch every day.
Always well below the rated figure — often around half or less
This is not a trick by any one company — it is how the whole industry quotes brightness, the same way a car’s top speed is measured on a test track, not in Dhaka traffic. The mistake is comparing a spec-sheet number with what you expect to see on the wall.
Professional reviewers and test labs don’t measure the lamp — they measure the screen. The international standard (known as ANSI / ISO 21118) works like this:
The result — often called ANSI lumens — is real, on-screen brightness. It is always dramatically lower than the light-source rating on the box, for premium brands and budget brands alike. That’s why a projector reviewed at a few hundred ANSI lumens can carry a spec sheet claiming several thousand.
Rule of thumb: when you see a big lumens claim anywhere online, mentally cut it in half (or more) to estimate real on-screen brightness. Apply that rule to every brand equally — then compare.
The ANSI / ISO 21118 nine-point measurement grid
Since every brand’s spec number is a light-source rating, comparing numbers tells you very little. What actually decides your picture quality is your room:
Answer 5 quick questions about your room and our engine matches the right AUN model to your lighting — no spec-sheet decoding needed.
Numbers can be argued about. A photograph cannot. Instead of selling you a figure, we show you exactly what our projectors do in real Bangladeshi rooms — and you judge with your own eyes.
Unedited photos on every product page, shot from the actual unit — never manufacturer renders or studio mockups.
Hands-on videos of every model in action — focus speed, picture quality, real rooms, real lighting.
Tell us your room on WhatsApp and we’ll tell you plainly which model fits — including when a cheaper one is enough.
This is the exact 9-point lux-meter method you read about above — performed on real AUN units at the factory, and published here unedited. We are, as far as we know, the only projector seller in Bangladesh that shows you the actual measurement instead of asking you to trust a number. Watch the meter yourself.
Left to right: U002 · U001 · A004 Pro — factory 9-point lux-meter tests, unedited
Photographed from actual AUN projectors in action — not mockups or manufacturer renders.
See the current AUN lineup with honest room-by-room guidance on every page.
5 questions about your room — get the right model matched to your lighting and budget.
Tell us your room and budget on WhatsApp — we’ll recommend honestly, even if it’s the cheaper model.
