ফ্লাইন এস৯০ ৪ কে মিনি পোর্টেবল অ্যান্ড্রয়েড স্মার্ট ডিএলপি প্রজেক্টর ওয়াইফাই ব্লুটুথ সক্ষম আকৃতির মোবাইল ফোন ইউএস প্লাগ এলইডি ল্যাম্প 3 ডি ব্যাটারি

very good communication by customer service. Timely delivey.

RGB Laser projector,4k

The interactive exhibits at the science museum use this 12,000-lumen 3LCD projector. Even on a 300-inch projection wall, the images remain vibrant with no vignetting, and the animations of dynamic exhibits are smooth and ghosting-free. Visitors don't experience eye strain even after prolonged viewing. The most impressive feature is the laser light source. We've been running it for 12 hours a day for over a month without any brightness decay. It's incredibly easy to turn on and off without warm-up, making setup extremely convenient. Initially, we were worried about heat dissipation with such high brightness, but in practice, the projector's temperature remains stable, and the noise level is low, completely unaffected by the explanations or interactive atmosphere of the exhibits.