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Light Bulbs & Fluorescent Lights

What type of bulb and socket to choose? We will advise you.

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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, i.e. classic incandescent lamps, halogen, energy-saving, and LED bulbs. You can usually find this type in ceiling or wall lighting fixtures or chandeliers.

E14

 Has the same screw as E27, so once again, it’s used in classic incandescent lamps, halogen, energy-saving, and LED bulbs. 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 slot 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 halogen or LED bulbs. It is used 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. The light source is usually a halogen or LED bulb. 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 halogen and 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. Used in halogen spotlights, LED lamps, floor lamps, or architectural lighting fixtures.

Technology

Incandescent light bulbs

  • The cheapest light source when it comes to purchase cost. The massive heat loss, however, makes them very inefficient. Over 90% of the consumed energy is converted into heat and only the remaining 10% into light. Their service life is also low – 1,000 hours on average.

Halogen bulbs

  • About 30% more efficient than incandescent bulbs. Illuminate at the full power right after you switch them on, can be dimmed, and their purchase cost is lower than that of LED bulbs. Their operating costs are considerably higher, so they are mainly used in places where you need strong light for a short time. Their service life is 2,000 to 3,000 hours.

Energy-effcient light bulbs

  • Roughly 75% more efficient than incandescent bulbs. After switching, it takes a while before they reach their maximum brightness, so they aren’t suitable for places where lights are often turned on and off. Lose their original luminance after a few years. Their service life ranges between 6,000 and 20,000 hours.

LED bulbs

  • The latest and most efficient technology. Their service life is remarkable - usually between 20,000 and 50,000 hours. Achieve high brightness with minimum energy consumption. A 9W LED bulb is equivalent to a 60W halogen lamp.
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754 Results
IMMAX NEO LITE Smart bulb LED E27 9W RGB+CCT colour and white, dimmable, WiFi - LED Bulb
4.3 125×
IMMAX NEO LITE Smart bulb LED E27 9W RGB+CCT colour and white, dimmable, WiFi
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 806 lm, adjustable light temperature (2700-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
7.09 €
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In stock > 10 pcs
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Order Code: IMXX19321
Philips Hue Essential White and colour Ambiance 4,7W 345 GU10 - LED Bulb
5.0 2×
Philips Hue Essential White and colour Ambiance 4,7W 345 GU10
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,7 W, 230 V, luminous flux 345 lm (2200 K), Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 15000 h, energy label F, 1 piece in package
24.90 €
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In stock 1 pcs
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Order Code: PHLS25092
OSRAM 20X1, G4, 20W, 64428 OVEN, 450 °C, clear - Oven Bulb
5.0 17×
OSRAM 20X1, G4, 20W, 64428 OVEN, 450 °C, clear
Oven Bulb - energy label G, power consumption 20 W, 12 V, luminous flux 300 lm, warm light (2900 K), diameter 0,8 cm, lifetime 2000 h
3.89 €
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Order Code: osra25106
EMOS Filament A60 / E27 / 10.5 W (100 W) / 1521 lm / neutral white - LED Bulb
10+ variants
4.8 414×
EMOS Filament A60 / E27 / 10.5 W (100 W) / 1521 lm / neutral white
LED Bulb - lamp cap E27, power input 10,5 W, 230 V, luminous flux 1521 lm, neutral light (4000 K), diameter of 6 cm, lifespan 25000 h, energy label D, 1 piece in package
Great price from  3.95 €
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Order Code: EMOS24156
Philips LED 2,3-40W, E14, 4000K, A - LED Bulb
2 variants
4.6 16×
Philips LED 2,3-40W, E14, 4000K, A
LED Bulb - lamp cap E14, power input 2,3 W, 230 V, luminous flux 485 lm, neutral light (4000 K), diameter of 3,5 cm, lifespan 50000 h, energy label A, 1 piece in package
12.90 €
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In stock 1 pcs
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Order Code: PHL22059
Philips Hue White 5,7W E14 Drop set 2pcs - LED Bulb
2 variants
4.7 30×
Philips Hue White 5,7W E14 Drop set 2pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 5,7 W, 230 V, luminous flux 470 lm, warm light (2700 K), diameter of 4,5 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 2 in package
31.90 €
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In stock 4 pcs
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Order Code: PHL20051
OSRAM SPC. T26/57, E14, 25W, 300 °C, clear - pack of 2 - Oven Bulb
4.9 26×
OSRAM SPC. T26/57, E14, 25W, 300 °C, clear - pack of 2
Oven Bulb - energy label G, power input 25 W, 230 V, Filament, luminous flux 140 lm, warm light (2700 K), diameter 2,6 cm, lifetime 1000 h, 2 pieces in the package
Great price 5.89 €
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Order Code: osra25115
Philips Hue LG G95 - LED Bulb
5.0 2×
Philips Hue LG G95
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,8 W, 230 V, luminous flux 500 lm (2000 K), Bluetooth, compatible with Apple Home, Apple Siri shortcuts, Google Home, Samsung SmartThings, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
69.90 €
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In stock 1 pcs
Order Code: PHLS24_006
AlzaPower LED 12-100W, E27, 2500K, Amber Filament, 1 pc - LED Bulb
4.4 22×
AlzaPower LED 12-100W, E27, 2500K, Amber Filament, 1 pc
LED Bulb - lamp cap E27, power input 12 W, 230 V, luminous flux 1521 lm (2500 K), diameter of 9,7 cm, lifespan 25000 h, energy label E, 1 piece in package
Buy with code ALZADAYS30AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 30 % Rabatt mit dem Code ALZADAYS30AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 3.43 €
4.90 €
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In stock 1 pcs
Order Code: APWLED-0017
Nedis smart LED bulb WIFILRF10A60 - LED Bulb
4.6 11×
Nedis smart LED bulb WIFILRF10A60
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, adjustable light temperature (1800-3000 K), diameter of 6 cm, WiFi 2,4 GHz, compatible with Tuya, Nedis SmartLife, control via app in both Czech and English, lifespan 10000 h, energy label E, 1 piece in package
11.90 €
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In stock > 5 pcs
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Order Code: Nedis22_11
LED Spotlight, 7W, GU10, 4000K, 560lm, White - LED Bulb
4.8 47×
LED Spotlight, 7W, GU10, 4000K, 560lm, White
LED Bulb - lamp cap GU10, power input 7 W, neutral light (4000 K), diameter of 5 cm, energy label F, 1 piece in package
2.50 €
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In stock > 50 pcs
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Order Code: SD2021_126
Philips LED Classic Filament 11-100W, E27, clear, 4000K - LED Bulb
4.6 59×
Philips LED Classic Filament 11-100W, E27, clear, 4000K
LED Bulb - lamp cap E27, power input 10,5 W, 230 V, luminous flux 1521 lm, neutral light (4000 K), diameter of 6 cm, lifespan 15000 h, energy label D, 1 piece in package
from  5.74 €
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In stock > 10 pcs
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Order Code: ESO1A011
Philips LED 75W A60 E27 2700K FR UE SRT4 - LED Bulb
5.0 2×
Philips LED 75W A60 E27 2700K FR UE SRT4
LED Bulb - lamp cap E27, power input 75 W, 230 V, luminous flux 1095 lm, warm light (2700 K), diameter of 6 cm, lifespan 50000 h, energy label A, 1 piece in package
7.99 €
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In stock 1 pcs
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Order Code: PHLS25033
Philips Hue White and colour ambiance 6.3W MR16 1P EU - LED Bulb
2 variants
4.3 4×
Philips Hue White and colour ambiance 6.3W MR16 1P EU
LED Bulb - smart, lamp cap GU5,3 - lamp cap GU5,3, power input 6,3 W, 230 V, luminous flux 400 lm, adjustable light temperature (2200-6500 K), diameter of 5 cm, Bluetooth, compatible with Apple Home, Samsung SmartThings, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
59.90 €
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In stock > 5 pcs
Order Code: PHLS23020
WiZ Tunable White 50W E27 G120 Vintage - LED Bulb
5.0 2×
WiZ Tunable White 50W E27 G120 Vintage
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,7 W, 230 V, luminous flux 640 lm, adjustable light temperature (2000-5000 K), WiFi 2,4 GHz, compatible with Samsung SmartThings, IFTTT, control via app in both Czech and English, lifespan 15000 h, energy label F, 1 piece in package
17.90 €
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In stock 1 pcs
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Order Code: WiZ21025
Philips LED Classic drop 2.2-25W, E27, Matt, 2700K - LED Bulb
4.7 54×
Philips LED Classic drop 2.2-25W, E27, Matt, 2700K
LED Bulb - lamp cap E27, power input 2,2 W, 230 V, luminous flux 250 lm, warm light (2700 K), diameter of 4,5 cm, lifespan 15000 h, energy label E, 1 piece in package
7.99 €
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In stock > 5 pcs
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Order Code: ESO1A033
Philips LED 75W A60 E27 4000K FR UE SRT4 - LED Bulb
5.0 6×
Philips LED 75W A60 E27 4000K FR UE SRT4
LED Bulb - lamp cap E27, power input 75 W, 230 V, luminous flux 1095 lm, neutral light (4000 K), diameter of 6 cm, lifespan 50000 h, energy label A, 1 piece in package
8.69 €
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In stock > 10 pcs
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Info
Order Code: PHLS25034
Philips Hue LG ST72 - LED Bulb
5.0 3×
Philips Hue LG ST72
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,8 W, 230 V, luminous flux 500 lm (2000 K), Bluetooth, compatible with Apple Home, Google Home, Samsung SmartThings, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
69.90 €
Buy
In stock 3 pcs
Order Code: PHLS24_007
Tesla - LED bulb FILAMENT BULB E27, 9W, 230V, 1055lm, 4000K daylight white, 360deg, milky - LED Bulb
3 variants
4.4 12×
Tesla - LED bulb FILAMENT BULB E27, 9W, 230V, 1055lm, 4000K daylight white, 360deg, milky
LED Bulb - lamp cap E27, power input 9 W, 230 V, luminous flux 1055 lm, neutral light (4000 K), diameter of 6 cm, lifespan 25000 h, energy label E, 1 piece in package
3.70 €
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In stock > 10 pcs
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Info
Order Code: TslLight24002
EMOS Smart LED bulb GoSmart candle E14 4,8 W (40 W) 470 lm RGB dimmable Wi-Fi - LED Bulb
3.8 44×
EMOS Smart LED bulb GoSmart candle E14 4,8 W (40 W) 470 lm RGB dimmable Wi-Fi
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,8 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 3,7 cm, WiFi 2,4 GHz, compatible with Tuya, Lidl Home, EMOS GoSmart, control via app in both Czech and English, lifespan 20000 h, energy label F, 1 piece in package
from  7.19 €
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In stock > 10 pcs
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Info
Order Code: HM521b6
Philips Hue White Ambiance 7W 550 Filament G125 E27 - LED Bulb
4.9 8×
Philips Hue White Ambiance 7W 550 Filament G125 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, filament, luminous flux 550 lm, adjustable light temperature (2200-4500 K), diameter of 12,5 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, energy label G, 1 piece in package
49.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHL21024
Philips LED candle 7-60W, E14, Matte, 2700K - LED Bulb
4.8 122×
Philips LED candle 7-60W, E14, Matte, 2700K
LED Bulb - lamp cap E14, power input 7 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 3,8 cm, lifespan 15000 h, energy label E, 1 piece in package
from  5.34 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: ESO1A028
Tesla Filament A class, E27, 4W, 840lm, 6500K cool white, 360deg, clear, 230V, 25 000h - LED Bulb
5 variants
4.7 26×
Tesla Filament A class, E27, 4W, 840lm, 6500K cool white, 360deg, clear, 230V, 25 000h
LED Bulb - lamp cap E27, power input 4 W, 230 V, luminous flux 840 lm, cool light (6500 K), diameter of 10,5 cm, lifespan 25000 h, energy label A, 1 piece in package
Buy with code ALZADAYS15AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 15 % Rabatt mit dem Code ALZADAYS15AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 5.09 €
5.99 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TES24003
WiZ Tunable White 50W E27 G95 Vintage + WiZ Tunable White 50W E27 G95 Vintage - LED Bulb
WiZ Tunable White 50W E27 G95 Vintage + WiZ Tunable White 50W E27 G95 Vintage
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,8 W, 230 V, luminous flux 640 lm, adjustable light temperature (2000-5000 K), diameter of 6 cm, WiFi 2,4 GHz, compatible with Google Home, Samsung SmartThings, IFTTT, Manufacturer app, control via app in both Czech and English, lifespan 15000 h, energy label F, 1 piece in package
34.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: WiZ24006

Light Bulbs & Fluorescent Lights

Alza Days LED Bulbs LED bulbs Light Bulbs & Fluorescent Lights Sorted by Socket by Socket Fluorescent Tube Lamps Fluorescent Tubes Smart Light Bulbs Light Sources Efficient Lamps Efficient Spotlight Bulbs Spotlight Oven Light Bulbs Oven Vintage & Retro Light Bulbs Retro Light Bulb Value Packs Value Packs AlzaPower Light Bulbs & Fluorescent Lights AlzaPower Jak vybrat žárovku
 

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Light Bulbs & Fluorescent Lights

In the category Light Bulbs & Fluorescent Lights on Alza.at, we currently have a total of 754 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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