Mini External Power Bank 5000MAH for Digital Products

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Product Description:

Specifications:

 

mini external power bank for digital products

*Internal battery type:Li-polymer 5000mAh

*Dimension: 110*57*18mm

*Weight: 120g

*shell :plastic

*Color: white

*Charging time: 5-6hrs

*Charging cycle:over 500 times,

*Warranty period: 2 years

 

 Detailed features:

1. Built in-high-capacity  Li-polymer 5000mAh , to make sure 500 times above charging cycle.

2. with the small and exquisite case,and use it conviently.

3. High standard safety protection design, including discharger, overload, short-circuit, lighting protection function

4. Intelligent hand control on-off switch to prevent power consumption for mini external power bank for digital products

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Q:Why should lighting transformers be used in factories and mines?
In some factories and mines (such as power plants), in order to supply power reliability, the power system is grounded in a three-phase, ungrounded, or neutral manner. In this way, the transformer must be connected to a neutral grounding type with a special transformer to supply power to the lighting.
Q:How is the lighting power of the 380V transformer calculated?
The transformer (Transformer) principle should change the AC voltage of the primary coil, the main component of the device level by using electromagnetic coil core (core) main functions: voltage transformation, current transformer, impedance converter, isolation, voltage regulator
Q:3 24V100W lights, I need to use a large capacity transformer (220V change 24V)?
The bulb is used in the two luminescence tube combined type lamp holder, the calculation process is very complex. Different combinations, the secondary voltage is different. Because it is a DC ignition, but also consider the efficiency of rectification, but the total power is constant.
Q:Line lights, lighting transformers in use!! Can live line work?!! Be afraid of electric shock 40
General line lights are 36 volts, especially in the damp and harsh environment, the light transformer adopts 24 volts voltage;After the use of light transformers, can generally live operations, first, low voltage, less dangerous, and the two is a transformer isolation, safety is greater, so you can live work, generally there will be no electric shock accident. (as long as the power is not in the hands and hands, the two end of the power supply, there will be no electric shock.)
Q:Why can't autotransformer be used as transformer for safety lighting?
The main and auxiliary coils of the autotransformer have common parts. Once the short-circuit is made, the lighting circuit is directly connected with the high voltage circuit, which is very dangerous
Q:Why the 21 lighting transformer must double winding type safety isolating transformers, prohibited the use of autotransformer.
So, safety regulations: lighting transformer must double winding type safety isolating transformer, prohibited the use of autotransformer.
Q:Can the 500 volt lighting transformer be changed into an electric welder?
500 VA transformer should not be used as an electric welding machine, so it is very difficult to reform the system, so it is better to buy a new electric welder
Q:How many power illuminator can 5Kva 36V transformer drive?
Of course, if you want to bring more is not impossible, but depends on the working conditions, the actual power = nominal power, short time use (to ensure that the transformer temperature rise is not too high) is also available
Q:Please tell me how to calculate the transformer in the lighting circuit of elevator shaft in building electrical design
Pe=19.5KW, installed capacityKx=1 coefficient of demandPjs=KxPe=19.5KW, calculated loadCOS, phi, =0.85, power factorIjs=KxPe/3/220/cos phi (Ijs calculates current, voltage, 380V/220V, three-phase)=1*19.5*1000/3/220/0.85=34.76A
Q:Power and lighting transformers, lighting quality will be affected much?
The quality of transformer itself, coupling coefficient, overload capacity, as well as the impact current of the bulb, the cold resistance of the filament and the starting factor at the same time, it is better to choose the 400VA transformer.
Our well-equipped facilities and excellent quality control throughout all stages of production enable to guarantee all of our customers' requirement. CE,RoHS,SAA,C-Tick,MEPS,UL,PSE,KC and ISO 9001 certifications could be offered.

1. Manufacturer Overview

Location Guangdong,China (Mainland)
Year Established 2003
Annual Output Value US$5 Million - US$10 Million
Main Markets 10.00% North America
10.00% South America
10.00% Eastern Europe
10.00% Southeast Asia
10.00% Africa
10.00% Mid East
10.00% Eastern Asia
10.00% Western Europe
10.00% Northern Europe
10.00% Domestic Market
Company Certifications ISO 9001:2000;CE; RoHS; SAA; C-tick; MEPS

2. Manufacturer Certificates

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Range  
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3. Manufacturer Capability

a)Trade Capacity  
Nearest Port YanTian
Export Percentage 61% - 70%
No.of Employees in Trade Department 3-5 People
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 1,000-3,000 square meters
No. of Production Lines 10
Contract Manufacturing OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range Low and/or Average