The so-called "hidden rules" are relative to the "meta-rules" and "clear rules". They refer to invisible, plain-text, unconventional, and customary, but they are widely recognized and actually functioning. A rule that people must "follow". Another popular explanation is the unclear rules and principles of black-box operations. It originated from people's greed and lust, and as the times progressed, it continued to grow and prosper, and it has now infiltrated into all walks of life in society.
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Any product as a commodity itself has a corresponding price and value, and the manufacturer will also price the product according to the value of the product itself, the market conditions and the user group. The projector is no exception. In a healthy market, the price of any commodity should be no profit, and the profit should be transparent. Of course, this is just an ideal state.
Pursuing profit maximization is the highest goal of the business. This is also understandable, but behind the ever-decreasing profits, because of the interests, there are some "hidden rules" in the projector industry that are widely known or unknown. As a consumer, how to avoid being "hidden rules"? What should we pay attention to when choosing to buy?
When purchasing a projector, whether it is a business product or a household product, performance indicators are often the most concerned by users in addition to price considerations. However, for many products that are not familiar enough with projection products, there may be hands and feet in fixed technical indicators. Do not believe it?
Projector brightness imaginary mark has long been one of the "hidden rules" of the projection industry
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For many users, the choice of projection, the most important thing is the brightness of the projector. Although brightness is not the only indicator to measure the projector, it is indeed the most concerned by many users. Let's not discuss whether the brightness is correct or not. Although the projector manufacturer will mark the brightness of the product on the data or official website, according to the "hidden rules", the projector you purchase often does not reach the nominal brightness value. .
Actual brightness often does not reach the manufacturer's nominal
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At present, the brightness index of most projectors is nominally based on the ANSI standard, and is measured by a unified measurement method. However, in general, the brightness of the projector when it leaves the factory is only about 80% of the nominal value. That is to say, the user can purchase a projector with a nominal 3000 lumens according to the manufacturer's propaganda, and the actual brightness may be only 2400 lumens. This situation is not the fault of the manufacturer, but it is indeed unavoidable by the user. If the user chooses the projector must consider the brightness, be sure to pay attention to this, do not be easily sold by manufacturers or manufacturers.
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Intelligent Street Lamp system
The core functions of intelligent Street Lamp include Intelligent lighting,Smart city applications,The information publishing system,Intelligent security,Charging pile,Distributed monitoring sensor system.
Product feature
1.Sensor
Sensor norise
Air pollution sensor
Temperature/humidity sensor
Brightness sensor
Municipal construction monitor
2.RFID
Special crowed monitor
CMC monitor
Community security monitor
Municipal facilities monitor
3.Communication Services
Micro base station
Street lights embedded WIFI hot spot
4.Video Monitor
Security monitor
Vehicle monitor
5.Emergency Broadcast
Active of the external field radio monitoring center
6.Intelligent Lighting
Cellular cooling technology
Based on the luminance uniformity of light distribution
Intelligent single lamp/center controller
Variety of modular design lamp,holder is optional.
7.Information Release
Advertising exposure
Current politics news
Information release
8.Charging Column
Electric car
Electric bicycle
Intelligent Street Lamp
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Jiangsu chengxu Electric Group Co., Ltd , http://www.satislighting.com