Microsoft Hololens holographic glasses are Microsoft's head-mounted augmented reality devices that can be used completely independently, without the need for cable connections, without the need to synchronize computers or smartphones. Hololens is the world's overlord in the AR glasses market. No one is inciting, and the price is even more scary. It costs more than 20,000 yuan. Now, the rival Meta, which is now able to compete with it, has finally started to ship its own Meta2.
It is reported that the Meta 2 developer version is the company's second-generation AR technology system, designed by the company and early adopters of the first generation of Meta 1, including developers, early buyers and research institutes.
With a viewing angle of 90 degrees and a resolution of 2560 x 1440, the product is equipped with a front camera that can capture 720P video and a sensor array for hand interaction and position tracking. The design is lightweight and users can wear it for several hours. Don't feel tired.
Compared to Microsoft's Hololens's more than 20,000 RMB, Meta2 has more people, and only one-third of the price of the former can enjoy a new experience. META's AR equipment is considered to be Hololens's biggest competitor. The company received a $23 million financing from Li Ka-shing's Victoria Harbour investment ledger, BOE and other companies last year, and Tencent also participated in the investment. 
Chinese Tier 1 brand Solar Panel (Longi, Jinko, Trina, Canadian, Ja etc.)
This type of product is mainly Tier 1 solar module product in China, include Longi solar panel. Jinko solar panel, Canadian Solar panel, ja solar panel etc.all of which are among the top 10 world-renowned brands. The original A grade product is mainly mono crystalline and half cut cell solar modules, with a power range of 400watts to a maximum of 700watts.quality warranty is 25 years.
A grade, this type of film is characterized by a neat and uniform appearance, printed electrode grid lines, no broken grid, no surface stains, no leakage, no aluminum package, no hidden cracks, no scratches, no black core, no reverse current, stable electrical performance, and high conversion efficiency
Using solar cell testing equipment to measure and screen, the conversion efficiency, filling factor, and appearance that meet certain standards are first level. Generally, the conversion efficiency, filling factor, and appearance of first level are better than those of level B
The level of solar panels can be divided into first level, second level, third level, and fourth level, and the first level components can be divided into first level+and first level - two levels. The second level is also the same, and the cost difference between different levels of solar panels is also very large.
Chinese tier 1 brand solar panel
TIER 1 brand include
Longi, Jinko, Trina, JA, Canadian, znshine, etc.
quality warranty
25 years
grade
original A grade (each solar panel can be checked on official website with barcode)
power range
400watt to max 700watt
Tier 1 Solar Panel,Mono Solar Panel N Type,Solar Panels Bifacial 555 Watt,Solar Panel Mono Topcon Cell
PLIER(Suzhou) Photovoltaic Technology Co., Ltd. , https://www.pliersolar.com