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LED Lights

The latest and most efficient lighting technology. Their service life is remarkable - usually between 20,000 and 50,000 hours. LED lights also achieve high brightness with minimal energy consumption. A 9W LED bulb is equivalent to a 60W halogen lamp.

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LED technology

At the core, it is a semiconductor electronic component that has the ability to emit light or infrared and ultraviolet radiation. This makes it different from other diodes. Officially, it is called a light-emitting diode, or LED for short.

Advantages of LED technology

  • About ten times more efficient than a normal light bulb
  • More resistant against vibration and shocks
  • Can change light without filters
  • Service life several times longer than other lighting sources
  • Does not contain mercury
  • Switching it on and off repeatedly has no negative effects on its service life
  • The diode can be very small and can be fitted anywhere


Socket

The base part of the bulb that connects to the lamp. There are several types of fittings:

    E27

      27 mm in diameter, this is one of the most common fittings. It’s used by almost every light source with a voltage of 230 V. You can usually find this type in ceiling or wall lighting fixtures or chandeliers.

      E14

      Has the same screw as E27. They differ only in diameter, which in this case is 14 mm. The operating voltage is 230 V. Commonly used in smaller lamps, spot lights, and candelabra and chandeliers consisting of a large number of light bulbs.

      GU10

      This socket has no screw. Instead, it has two pins with a diameter of 5 mm that you snap into the lamp and twist slightly. Its operating voltage is 230 V and this type is most commonly encountered in ceiling lights, spot lights, or in bathroom and lavatory fixtures.

      G4

      A threadless socket, it features two pins 4 mm apart that you snap into the lamp. Its operating voltage is 12V. Most commonly found in kitchen counter lighting fixtures, low ceilings, or bars.

      GU5.3

      Another threadless socket, it features two pins 1 mm in diameter and spaced 5.3 mm apart. The socket is designed for 12V. Mainly used in smaller lamps and spot lights.

      G9

      A threadless socket similar to GU10. It has two pins that snap into the lamp. This is the smallest size for 230V LED bulbs. Most commonly used in ceiling fixtures, spot lights, or in bathroom and lavatory fixtures.

      R7s

      A linear, tube-shaped socket inserted into a fork with a pitch of 78-189 mm. Its operating voltage is 230 V.

      GU4

      A threadless socket similar to other GU types. You’ve got two pins 1 mm in diameter and spaced 4 mm apart that you simply snap into the lamp. The pins must be at least 6 mm long.

      GX53

      This type is used in ceiling fixtures, floor lamps, or footings. The distance between the pins is 53 mm.

       

      General comparison chart

      This chart shows estimated power savings when using different types of light bulb technology. In direct comparison, LED is clearly the best option.

      Brightness 220 lm 400 lm 700 lm 900 lm 1300 lm
      Light source type          
      Incandescent bulb 25 W 40 W 60 W 75 W 100 W
      Halogen bulb 18 W 28 W 42 W 53 W 70 W
      Energy-efficient light bulb 6 W 9 W 12 W 15 W 20 W
      LED bulb 4 W 6 W 10 W 13 W 18 W

       

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      2,054 Results
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      EMOS LED ceiling luminaire NEXXO black, 17,5 x 17,5 cm, 12,5 W, warm/neutral white
      LED Light - power input 12,5 W, luminous flux 1050 lm, adjustable light temperature, (3000-4000K) material: metal and plastic, max. height 2,1 cm, width 17,5 cm, IP40/IP20
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      EMOS LED ceiling luminaire NEXXO white, 30 x 30 cm, 25 W, warm white
      LED Light - power input 25 W, luminous flux 2000 lm, warm light (3000 K) material: metal and plastic, max. height 2,1 cm, width 30 cm, IP40/IP20
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      EMOS LED ceiling luminaire NEXXO white, 22,5 x 22,5 cm, 18 W, warm white
      LED Light - power input 18 W, luminous flux 1500 lm, warm light (3000 K) material: metal and plastic, max. height 2,1 cm, width 22,5 cm, IP40/IP20
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      Order Code: EMOS22_030
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      EMOS LED ceiling luminaire NEXXO white, 17,5 x 17,5 cm, 12,5 W, warm white
      LED Light - power input 12,5 W, luminous flux 1000 lm, warm light (3000 K) material: metal and plastic, max. height 2,1 cm, width 17,5 cm, IP40/IP20
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      EMOS LED ceiling luminaire RUBIC 22 cm, 24 W, neutral white
      LED Light - power input 24 W, luminous flux 2400 lm, neutral light (4000 K) material: plastic, max. height 2,6 cm, width 22 cm, IP20
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      EMOS LED ceiling luminaire RUBIC 12 cm, 9 W, neutral white
      LED Light - power input 9 W, luminous flux 900 lm, neutral light (4000 K) material: plastic, max. height 2,6 cm, width 12 cm, IP20
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      EMOS LED ceiling luminaire NEXXO black, 22,5 cm, 18 W, warm/neutral white
      LED Light - power input 18 W, luminous flux 1600 lm, adjustable light temperature, (3000-4000K) material: metal and plastic, max. height 2,1 cm, width 22,5 cm, IP40/IP20
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      EMOS LED ceiling luminaire NEXXO white, 17 cm, 12,5 W, warm white
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      LED Light - power input 25 W, luminous flux 2000 lm, warm light (3000 K) material: metal and plastic, max. height 2,1 cm, width 30 cm, IP40/IP20
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      EMOS LED ceiling luminaire NEXXO white, 22,5 cm, 18 W, warm white
      LED Light - power input 18 W, luminous flux 1500 lm, warm light (3000 K) material: metal and plastic, max. height 2,1 cm, width 22,5 cm, IP40/IP20
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      EMOS LED ceiling luminaire NEXXO white, 17 cm, 12,5 W, neutral white
      LED Light - power input 12,5 W, luminous flux 1050 lm, neutral light (4000 K) material: metal and plastic, max. height 2,1 cm, width 17 cm, IP40/IP20
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      EMOS LED ceiling luminaire NEXXO white, 12 cm, 7 W, neutral white
      LED Light - power input 7 W, luminous flux 480 lm, neutral light (4000 K) material: metal and plastic, max. height 2,1 cm, width 12 cm, IP40/IP20
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      Buy with code ALZADAYS50DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 50 % Rabatt mit dem Code ALZADAYS50DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 7.45 €
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      Nanoleaf Lines Skin Matte Black 9pcs
      Case With these ultra-lightweight snap-on covers, you can instantly change the look of your layout and adapt it to your personal style; No tape or additional installation required
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      Philips Hue Tap Dial Switch Black
      Smart Wireless Remote Tap is available in black and white. You can control up to three rooms or zones with each button, rotating the outer ring to change the brightness of the light. You can mount the remote on the wall, put it on a magnetic surface or use it as a remote control.
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      Philips Hue Tap Dial Switch White
      Smart Wireless Remote Tap is available in black and white. You can control up to three rooms or zones with each button, rotating the outer ring to change the brightness of the light. You can mount the remote on the wall, put it on a magnetic surface or use it as a remote control.
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      Baseus i-Wok Series LED screen light, black
      Monitor Light - integrated LED light source, with a switch, tilt option and rechargeable battery, chromaticity and dimming settings, control by touch,, adjustable light temperature, chromaticity from 2800 to 5500 K, voltage 5 V, power consumption 5 W, modern style, material aluminium and plastic, black colour, dimensions 6.6 × 45 × 9.2 cm (L×W×H)
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      On the way 1 pcs
      Expected 02/07/2026
      Order Code: BASE299
      In the category LED Lights on Alza.de, we currently have a total of 2054 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app.
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