7 most prevalent batteries for flashlight(2)

In last post , 2 main batteries have been introduced. We will continue the rest 5 types in this post.                                                                                                                 4) CR123                                                                                                                                  Also refers to CR123A,123,2/3A,17345,etc.The size is usually 17*34.5 mm.Generally CR123A is a lithium primary battery and can be replaced by 16340 battery(size:16*34 mm)   

Because of its small size, CR123 batteries are mainly used in pocket flashlight.

Brontelight technology's  RA05 is a typical CR123 flashlight.    

More flashlights on Brontelight technology powered by CR123                                   Single CR123: 200 lumen flashlight  high power flashlight   600 lumen flashlight high lumen flashlight

2*CR123: led torch flashlight most lumen flashlight  combat flashlight                                           700 lumen flashlight  strobe flashlight  1000 lumen flashlight               

4*CR123: 2000 lumen flashlight

5)16340 battery.                                                                                                                    With almost same size and functions as CR123, these 2 batteries can be replaced each other in most environments.Like pocket flashlight X16, either CR123 or 16340 can power it. 

  Therefore, above listed flashlights support 16340 batteries too. While in some cases, CR123 or 16340 can not be charged in rechargeable flashlight like 1000 lumen flashlight RC25 V2 due to its circuit design.   

6) 18650 battery                                                                                                                   Also refer to 168A, is a widely used  rechargeable battery . Its size is 65*18 mm.With almost same diameter and  twice in length of CR123 or 16340, thus,18650 battery is usually used in flashlight to replace 2 or more CR123 or 16340 batteries. Also as it can provide more capacity,it is broadly used in high power flashlight. Brontelight Technology's best tactical flashlight and 3000 lumen flashlight  are typical examples. 

  

On Brontelight Technology website,there are several products supporting 18650 batteries.    

Single 18650 battery: combat flashlight (1*18650 or 2*CR 123 or 2*16340)                                                         Strobe flashlight (1*18650 or 2*CR 123 or 2*16340)                                                         700 lumen flashlight(1*18650 or 2*CR 123 or 2*16340)                                                 800 lumen flashlight(1*18650 or 2*CR 123 or 2*16340)                                                 1000 lumen flashlight(1*18650 or 2*CR 123 or 2*16340)                                               most lumen flashlight (1*18650 or 2*CR 123 or 2*16340)

2*18650 batteries:         2000 lumen flashlight         big flashlight

3*18650 batteries:        3000 lumen flashlight        Heavy duty flashlight     

  7)26650 battery                                                                                                                              Is the popular size LiFePo4 cell battery  with dimension of 26.5*65.4 mm. Its length is same as 18650. Below is a picture to show their comparisons. 

 Usually 26650 battery has more capacity to power for super bright led flashlight. As it can charge and discharge,more and more rechargeable flashlight will use 26650 battery.Currently, Brontelight Technology Co.,Ltd has only one item--their900 lumen flashlight supporting 26650 battery. 

                                                                   (End) 

                     

                                                                          

              

               

7 most prevalent batteries for flashlight(1)

As the power for flashlight, batteries play important roles.It effect the performance of flashlight and also the lifetime.In this post, we would like to share you about 7 most commonly used batteries in flashlight.

1) AAA battery                                                                                                                       Also refers to Micro,Micro light, MN2400, MX2400, Palito, Type286, UM4, #7, R3,etc is a standard dry battery. The size is 44.5(L)*10.5mm. AAA batteries are usually used in small electronic devices like remote control, Mp3 players,pocket flashlight,etc. Surfed the website of Brontelight Technology,we notice AAA flashlight  covers a big share that may be due to AAA battery dominating the primary battery market( 25% +of world primary battery market) 

  

More AAA flashlight on brontelight.com                                                                                 single AAA battery:pocket flashlight RA01  stainless steel flashlight  gold plated flashlight   medical pen light                                                                                                         2*AAA battery: reusable penlight

2) AA battery                                                                                                                          Also called mignon, MN1500, MX1500, MV1500, Type 316, UM 3, #5,etc is  a single cell cylindrical dry battery.It has been most widely used in most electronic devices and covers around 60% share in battery market. Its size is 14.5*50.5 mm.Generally, it provides 3 times capacity than AAA battery.

Here are some best AA flashlight :                                                                                              100 lumen flashlight   flexible flashlight handy flashlight hiking flashlight ,etc      3) 14500 battery                                                                                                                   With the technology development, secondary battery(rechargeable battery) has been invented. AA same sized lithium battery has been produced to power LED flashlight. Its size is 14*50 mm and usually referred to Lithium AA battery. Brontelight Technology's extendable flashlight Bronte V2 is compatible with 1 or 2 AA battery or 14500 battery.

(To be continued)  

5 most attractive and inspring caves in China

As a spelunker( Caving enthusiast), you may always look for your next and more inspiring expedition.There are numerous caves of different types, sizes,features and locations through China. In this post, we have listed  Top 5 most rated and recommended caves.

1) China longest Cave---Shuang River Cave (双河洞）

Tags: China Longest,Asian 2nd and world 13th longest caves                                         Length: 105.75 km                                                                                                                Features:It contains around 118 branch carves,numerous waterfalls and 5 underground rivers.More than 30 entrances,different scenarios in different caves and complex structure bring it the fame of most fantastic and challenge site for outdoor adventure enthusiasts.                                                                                   Location: Shuanghe Village, Wenquan Town, Suiyang County, Zunyi City, Guizhou(贵州省遵义市绥阳县温泉镇双河村)

Price: 70 RMB 
Opening hours: 08:00 to 18:00
How to Get there: Take a bus or train to Suiyang County (located between Guiyang and Chongqing), from there, hire a driver to take you to the Shuang River Cave (双河洞).

2）China biggest Cave--Tenglong Cave(腾龙洞） 

Tags:China's biggest cave,Asian biggest dry cave                                                              Square:2,000,000 square meters                                                                                    Features:consist of dry cave,water cave,breeze cave ,carp cave,etc.These make it very complex and attractive.Magnificent sights and cascading waterfalls leave an unforgettable impressions to tourists and explorers. It is really a big challenge for most cave enthusiasts.                                                                                                 Location: Tenglong Cave Scenic Area, 7 km from Lichuan City, Hubei Province 
地址：湖北省利川市内，腾龙洞风景名胜区 （距利川市城7公里） 
Price: 120 RMB (non peak-season), 180 RMB (peak-season)
Hours: 08:00 to 17:30
How to get there: From Lichuan Railway Station (利川市火车站), there is a tourist bus to Tenglong Cave Scenic Area (腾龙洞风景名胜区) or you can drive or take bus from Wuhan to Tenglong Cave scenic area directly. It takes around 8 hours. 

3) Taoist scene--Taiji cave   

Taiji Cave, meaning “Cave of the Supreme Ultimate” is located in Stone Dragon Mountain, where the provinces of Zhejiang, Jiangsu and Anhui meet. This 200 million year-old cave has religious significance and is divided into wet and dry layers, representing the yin and yang of Chinese philosophy. The cave is located on a hill and is reached by cable car. The area of the cave open to the public extends 140,000 meters and is divided into 19 halls with more than 300 scenic spots.It has been one of Taoist practice holy land.                                                               Location:38 km north of Guangde County, Anhui Province(距安徽省广德县城38公里，广德太极洞风景区 )
Price: 60 RMB (Cable Car 25 RMB)
Hours: 07:00 to 18:00
Tel: 056 3685 0196
Getting there: take a bus from Shanghai or Nanjing to Guangde County ( 广德县). In Guangde, take one of the numerous minibuses to the Taiji Cave Scenic Area (广德太极洞风景区) for 5 RMB

4) China oldest cave--million year ice cave    

This 3,000,000 year-old cave is located in north China’s Shanxi(山西）province. The cave is more than 100 meters long and stays frozen year-round. Even you visit during the summer, be prepared for cold temperatures; In winter, well, you already know what you’re in for! The cave's stalactites, ice columns, and frozen waterfalls are illuminated with colorful lights letting them glisten like diamonds. The intricate icicles hanging from the cave ceiling are truly a sight to behold. The cave is divided into five levels, accessible by ice stairs, allowing visitors diverse views of the interior. Location: Madigou Village, Ningwu County near Xinzhou City, Shanxi Province(山西宁武靠近忻州的马地沟村 )
Price: 50 RMB
Hours: 08:00 to 17:00
How to get there: The easiest way to get there is to take a train to Taiyuan to Ningwu and then hire a driver to take you to the cave site, which is about 50 km west of Ningwu in Madigou Village (麻地沟村).

5)  World's biggest water cave--Benxi water cave

located in Benxi, Liaoning province, is 35 kilometers to the northeast of Benxi. Benxi Water Cavel is a large limestone water filling cave formed millions of years ago, is the longest cave that has water filling in the world, is now developing Underground River for 3000 meters long, and continue flowing on the bottom. The cave river is really enormous. The river is up to 7 meters deep and the passage is up to 38 meters high and 50 meters wide. In the huge entrance hall, a chamber which is 50 meters long and 20 meters wide, and some 3000-year-old human remains were found there. The cave has an underground river with water so clear that the riverbed is always visible.                                                                             Location:  Benxi Liaoning(辽宁本溪）                                                                                      Price:165RMB                                                                                                                         Hours：8：30---16:00                                                                                                        How to get there:buses from Benxi station to Water Cave station. Departure time: 7:00 7:30 8:00 8:30 9:00 11:20 12:00 12:55 13:20 14:30 

In order to have an inspiring experiences, you have to make preparation and buy necessary caving gears. A high power flashlight is a crucial kit you should carry.1000 lumen flashlight and 3000 lumen flashlight are available on wish. Buy one to better you caving expenditure.   

Amazing! Lit up the world with your body

Generally, flashlights are powered by batteries like AA,AAA,18650,16340 or lithium since its invention. More batteries are placed in series or parallel in high power flashlight. our 1000 lumen flashlight is loaded with  1PCS of 18650 battery or 2 CR123 Batteries. While 3000 lumen led flashlight Bronte X30 uses 3PCS of 18650 batteries.The flexible flashlight Bronte V2 is compatible with either 1 or 2 AA batteries.

However,in order to save energy and protect the environment, new echo friendly energies  are encouraged to be developed and put into daily use.Thus, solar flashlights or lanterns  are launched in the market .

This is a good try though its efficiency is not high.Currently,researchers have Focused on human heat and successfully powered a high power flashlight with human body heat.This was created and tested by a teenage girl Ann Makosinski.

4 peltier tiles are used to convert the temperature differences between body and room into electricity to lit up a high power flashlight.One side of the tiles is heated by our body and the other side is cool outside.This causes  a temperature difference.When this differences reach up to 5 degrees,electricity will be produced.In the demo, Ann had lit up a high power flashlight  for 20 minutes at very low lumen. This is not a good performance.However, it is a striking step and has a long way for improvements and putting into commercial practice.

This is a good try and it is believed that one day  all electronic appliances including 3000 lumen led flashlight will need no batteries or electricity produced by coals or other resources,which can bring pollution to our environment. Our body will become the largest power plant.

Best 200 Lumen flashlight under US$30.00 in 2015

As a budget shopper, you are always seeking for the best performance price ratio products.Toady, we would like to share you some  200 lumen led flashlight that sells under US$30.00.

Size of this 200 lumen flashlight  is 87*23.5 mm( 3.43*0.93 inch) and as light as 50 g (1.76 Oz). However, it has a high efficiency LED and generate 205 lumen brightness light with 1  CR123  battery.

Rectangle knurlings are easy for users' held.U shaped tactical switch cap increases the upstanding capability. with a wrist hole,this small flashlight can be attached to key chains for everyday carry. 

Waterproof and sturdy body allows it work under all  environments.Strobe function makes it outstanding from competitors.

Good design,super quality, high efficiency and competitive price wins title of best small flashlight in 2015 for this 200 lumen flashlight . It is available for sale on Wish.