Comparison BASEUS DGIWK-P01 vs BASEUS DGIWK-P

Luminous flux provided by a lamp. This parameter is indicated only for models using built-in LED modules (see “Light source”) - in lamps with a socket, it will depend on the light bulbs used.

Luminous flux is essentially the brightness of the lamp. The brightness itself in lumens tells little to the average user, a non-specialist; however, there are tables that allow you to compare the luminous flux of a lamp with a particular light source of standard brightness. For example, a 40 W incandescent lamp produces about 415 lm, a 60 W lamp produces 710 lm, and a 100 W lamp produces 1340 lm. More detailed tables for comparison can be found in special sources.

Speaking of brightness, it is also worth noting that it should not be too low or too high: both create discomfort, increase fatigue and can lead to eye problems. Reference sources provide recommendations on optimal brightness for different tasks. However, this point can be determined for yourself experimentally. And if in doubt, you can purchase a lamp with adjustable brightness (see “Functions and capabilities”).

Touch control is considered more convenient and advanced than buttons, toggle switches, rotary knobs and other mechanical controls. Firstly, the touchpad has a flat surface without protruding parts, making it less dirty and easier to clean. Secondly, there are no moving parts on the panel, which increases its service life. Thirdly, the sensors can perceive different types of actions, which allows you to use one simple panel for different functions: for example, turn a lamp on and off with a short “tap”, and change the brightness by moving your finger up or down. There are also quite unusual functions - for example, “random” color selection depending on where the panel was touched and how many milliseconds it lasted. It is also worth noting that the sensors can have a “technological” appearance, perfect for modern style lamps; and among the “classics” there are models where the stand is one continuous touch surface.

Standard power supply provided in the design of the lamp.

— Network. Powered by a regular household 230 V socket. This is the option provided by most table lamps: sockets provide unlimited operating time and are ubiquitous (and where they are not, you will need a portable flashlight rather than a table lamp). The only significant drawback of such a power supply is the presence of a wire; however, it usually does not cause noticeable inconvenience, and problems with reaching the outlet are rare and easily solved.

— Batteries. Powered by replaceable batteries ("finger" AA, "little" AAA, etc.). These batteries can be either disposable or rechargeable. Such power allows the lamp to be used without being connected to an outlet, and the batteries themselves can be quickly replaced when the charge is exhausted (unlike built-in batteries, see below). At the same time, table lamps are intended mainly for residential and work premises, where there are just no problems with sockets. At the same time, autonomous power supply inevitably limits the operating time of the lamp, and specifically, batteries are suitable only for relatively low-power lighting sources. Therefore, this option is used only in cases where the wire is undesirable or inappropriate. For example, some children's lamps with a night light function are powered by batteries (so that there are no ext...ra wires in the children's room), as well as decorative models in an unusual design (so that the power cord does not spoil the appearance).

— Accumulator. In this case, we mean the original battery, which does not belong to the standard “battery” sizes and does not provide quick replacement (sometimes it is not removable at all). Actually, the impossibility of quick replacement is precisely the main drawback of such power supplies compared to the batteries described above. On the other hand, batteries can be made more capacious and at the same time more compact, it is easier to fit them into the design of the lamp (even a very small one); and the fact that such food does not need to be purchased separately can also be attributed to dignity. Due to this, batteries are more common — both in original lamps, where the wire is in principle undesirable, and in lamps for working purposes (mainly LED).

— USB port. Powered by a standard USB port. This category of lamps will be appreciated mainly by laptop owners: when working with a laptop, USB ports are in close proximity, and connecting lamps to such a connector is easier than looking for an outlet and pulling a wire to it. However, such a device can also be connected to an outlet — just find a 230-to-USB adapter. USB adapters also exist for car cigarette lighters, so such a lamp can also be useful for mobile use — for example, when going out into the countryside or in a van of a mobile group (scientific, operational, etc.). And if necessary, you can also power the lamp from a battery — a separate power bank or the same laptop. At the same time, in general, the scope of USB lamps is quite specific, and there are few of them.

The presence of a USB port (microUSB) in the design of the device for charging the built-in battery. A very versatile solution that allows you to replace the power cord, if necessary, if it is frayed or lost.