TELESIN ND8 ND16 ND32 CPL Lens Filter Set Aluminium Alloy

Mobile phone chargers can be roughly divided into travel chargers, cradle chargers and maintenance chargers. Generally, users mainly contact the first two. And the most sold on the market is the travel charger.
There are also various forms of travel chargers. The common ones are the cheap duck egg-shaped miniature travel charger, the ordinary desktop card board charger, and the high-end desktop charger with crystal display. Mobile phone charger, also known as: mobile phone adapter, is actually composed of a stable power supply (mainly regulated power supply, providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting. The output parameters marked on the charger (referring to the line charger): such as output 5.0V/1A, output 5.0V/1500mA-11200... refers to the relevant parameters of the internal regulated power supply. Understand this truth, you will know that a (good quality) mobile phone charger is easy to change into a good quality regulated power supply.
The chargers of lithium-ion (li-ion) batteries commonly used in mobile phones use a constant-current and voltage-limited charging system, and the charging current is generally around C2—that is, the charging rate is two hours. For example, a 500mAh is charged at 250mA in about two hours 4. Constant voltage charging after 2V.
The lion is not suitable for the -DV/DT detection fast charging method used by the NIMH advanced fast charger, because the lion has a strict limit on the charging current. Lithium ion (Li+) is very active, and high current charging is prone to danger. The general user contacts are mainly the first two. The most popular travel chargers on the market are travel chargers. There are also various forms of travel chargers. The common ones include cheap duck-egg miniature travel chargers, ordinary desktop card board chargers, and high-end desktop chargers with LCD display. device. In view of the fact that most mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1-3 hours. Many chargers on the market advertise that they are controlled by microcomputers, including some very cheap duck-egg-type miniature travel chargers. In fact, strictly analyzed from the charging circuit, only a small number of chargers can be truly controlled by microcomputers (MCU control). .
Some manufacturers claim to be "microcomputer control" when they use integrated blocks on the charging circuit. In fact, many low-cost design integrated blocks are cheap op amp integrated blocks, while some dedicated charging control integrated blocks have higher unit prices. , generally used in relatively high-end or brand-name chargers. So we can't trust the so-called microcomputer control, especially the cheap products. Many products are similar in appearance but have very different internal circuits, and their performance is also very different. 

TELESIN ND8 ND16 ND32 CPL Lens Filter Set Aluminium Alloy Frame for GoPro Hero 9 Action Camera ND CPL Lens Accessoreis

Feature

1.Gorilla Glass,durable and Scratch-resistant. 2.Multi-layer coating,waterproof and oilproof. 3.Aluminum alloy frame, corrosion resistance. 4.9H hardness,scratch without leaving a mark.

Polarizing (CPL) Filter

1.Polarizing filter eliminates reflections from non-metallic surfaces, and increases contrast and color saturation. 2.Removes unwanted reflections from surfaces such as water and glass.

ND Filter

1.Reduce an amount of visible light that enters the lens, allowing the user to utilize wider apertures or slower shutter speeds, particularly in bright conditions. 2.Work especially well for portraits by allowing the photographer to reduce the depth of field, producing pleasant background blur while keeping the subject in sharp focus. 3.Emphasize movement by permitting slow shutter speeds in bright light, giving life to photos that would otherwise look frozen in time. 4.This particular filter is multi-coated to minimize reflection on the filter surface, which reduces flare and ghosting, and produces sharp contrast and well-balanced color.

Specifications:

1.ND CPL filter set weight:90g 2.CPL filter weight:68g 3.ND 8 16 32 filter:83g 3.Packing size:11.3cm*7cm*4.7cm

Package Content

CPL Filter: 1x CPL Filter 1x Packaging Box ND 8 16 32 Filter Set: 1x ND8 1x ND16 1x ND32 1x Packaging Box ND CPL Filter Set: 1x ND 8 1x ND 16 1x ND 32 1x CPL 1x Packaging Box