Lighting

https://cdn.alza.cz/Foto/ImgGalery/Image/Article/index-podani-barev-cri.jpg

Index podania farieb (CRI)

Index podania farieb (CRI) udáva presnosť, s akou svetlo z určitého zdroja zachováva farby povrchov, na ktoré dopadá.

https://cdn.alza.cz/Foto/ImgGalery/Image/Article/svetelny-tok.jpg

Luminous flux expresses the amount of light that comes from the source and is measured in lumens. Different wavelengths of light and the sensitivities of the human eye are taken into account. Simply put, more lumens means brighter light and less lumens means dimmer light from your lightbulb.

Energy class

Energy class of an appliance determines the amount of energy consumed by the electric appliance used within the European Union. Energy classes are defined by the EU and individual members of countries incorporate them into their legislation. From September 21, 2021, a new energy class ranging from A to G is applicable.

Energy consumption

The energy consumption of light fittings. The consumption of modern energy-efficient lights are measured in watts.

Base

The base serves as the mechanical attachment and electrical connection of the bulb with the light source. They can be screwed in or pinned and they can also vary in size. Different types of sockets are not compatible together.

Chromaticity

Colour temperature (also chromaticity) characterises the spectrum of white light (kelvin - K). Depending on the value, we perceive the colour of the light as "warm white" (about 3000K) up to "cool white" (about 6000K).

Number of pieces in a package

Determines how many light sources are included in the package.

Service life

The length of time (according to the manufacturer) the lightbulb will shine, under the ideal conditions. This value is also affected by how many times it is turned on – frequent switching on and off reduces the lifetime.

P-DC1-WEB09

We care about your privacy Alza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.

More information Less info

We use 8 categories of cookies on our website:

Technical cookies
These are strictly necessary for the functioning of the website and the features you choose to use. Without them, our website would not work; you wouldn't be able to log in to your user account, for example.
Functionality cookies
These cookies allow us to remember your basic choices and improve the user experience. These include remembering your preferred language or allowing you to stay logged in permanently.
Social media cookies
These cookies allow us to easily link you to your social media profile and, for example, allow you to share products and services with your friends and family.
Content personalisation
These cookies allow us to show you content and ads according to the information we have about you to best meet your needs. This includes what content you have viewed, or on what device you are accessing our website.
Non-personalised advertising
These cookies allow us to show you general ads for products and services.
Personalised advertising
Thanks to these cookies, we and our partners can offer you relevant products and services based on your purchases, your shopping behaviour and your preferences.
Audience metrics
These cookies allow us to optimise our site for your convenience based on how you use it. The aim is to remember or anticipate your choices. This includes, for example, the use of features, their location, or the behaviour on the page.
Third party cookies
These are third party cookies, and you can find out more about them and our partners here.

By giving your consent to the processing of cookies, functionality and analytical cookies will be installed on the device you use to browse the website (click on the "I understand" button for both categories, or you can select only one of the categories by clicking on the "Settings" button). We always install technical cookies on your device, even without your explicit consent, because without them our website would simply not work.

You can revoke your consent to the processing of cookies. In connection with our company's cookie processing, you also have the following rights: the right to access cookies, delete, modify, supplement and correct them, restrict processing and the right to lodge a complaint with the Office for Personal Data Protection. Read more about your rights.

For even more detailed information about how we process cookies, please see our Personal Data Protection Policy.

I understand Detailed settings Reject everything