2016年11月15日星期二

Convoy C8, a Great All-Purpose LED Flashlight

Today, I want to give a review of the famous lantern from Convoy, namely C8. This model is considered to be something between the universal and long-range. And that’s why this LED flashlight became so popular.
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Other lights, such as Olight or Nitecore, always come with all sorts of accessories, but the Convoy is on the contrary, just a minimum. However, the blame for this does not make sense, as the accessories are not important, superior quality and reliability, which in Convoy do not take away. Back at the farm, let’s check the Convoy C8 in detail.
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Specs:
- Brand: Convoy
- Model: C8
- Diode: xml2 U2-1A (6500-7000)
- Output: 900 lumens
- Reflector: Smooth Reflector (AR-coated inside)
- Mode Groups: two
- Waterproof: IPX-8 waterproof
- Driver: 7135x6 Copper DTP board
- Size: 44.5 (head)*143 (length)*25.6 (body)
- Weight: 145 grams (without battery)
- Battery: 18650
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As for light, this parameter lantern fully lived up to expectations, shining it right under your feet or when you try to read a book in the maximum / average mode. But within 10 meters, it shines perfectly. To tell the truth, it is very difficult to describe the lamp, when most of the other lamps have exactly the same design.
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And with the compact format, it’s comfortable to hold, and good for griping. Coning with the excellent finish, it looks immaculate. Built with excellent machining and workmanship, it provides great threads and good heatsinking. The built quality is fantastic, feels solid. And it really throws well and the modes are easy to program. And now, you can order Convoy C8 at Banggood for a reasonable price.
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2016年11月2日星期三

Why Rechargeable Batteries Are Needed

Rechargeable batteries come in various types. The purpose of their creation is dependent on the equipment of the spectrum, with which they can be used. Originally, they were designed as an alternative to conventional batteries.

The main purpose of the batteries is providing food particular device without connecting to the AC power. To do this, the batteries need to accumulate charge and to be able to keep it until the immediate use of the device. Unlike conventional batteries, rechargeable batteries have properties to restore its charge. Many batteries were created as an alternative to the usual batteries. Ability reusable makes these devices more convenient to operate and economical. And the flashlight uses (e.g. the Ultrafire 18000 lm flashlight or Nitecore Intelligent I2) rechargeable batteries, you need to get the Nitecore Intelligent I2 car adapter to charge them.

The battery is a set of batteries connected in parallel or in series. In most cases, the connection is carried out sequentially. This method is needed to increase the final output voltage. This allows the battery group, the output voltage of each of which is significantly lower than the general. This scheme allows to increasing the overall capacity of the battery. Typically, parallel connection is used to create batteries for the devices, which is necessary to ensure long-term operation without recharging.

Currently, all mobile devices use batteries to operate. These include mobile phones, laptops, smartphones, tablet PCs, mp3-players and so on. In most cases the use of lithium-ion batteries. Particularly important characteristics of the battery may include the following parameters: Capacitance, voltage, efficiency and durability is very important to understand that the batteries have a particular resource that is wasted during use.