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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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762 Results
Philips LED 8-60W, E27, 2700K, 3 pcs - LED Bulb
2 variants
4.8 207×
Philips LED 8-60W, E27, 2700K, 3 pcs
LED Bulb - lamp cap E27, power input 8 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 6 cm, lifespan 15000 h, energy label F, 3 in package - from 1.87 €/pcs
from  5.62 €
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In stock > 10 pcs
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Order Code: PHL19080
EMOS Filament A60 A CLASS / E27 / 5 W (75 W) / 1 060 lm / warm white, 3 pcs - LED Bulb
10+ variants
4.8 414×
EMOS Filament A60 A CLASS / E27 / 5 W (75 W) / 1 060 lm / warm white, 3 pcs
LED Bulb - lamp cap E27, power input 5 W, 230 V, luminous flux 1060 lm, warm light (2700 K), diameter of 6 cm, lifespan 50000 h, energy label A, 3 in package - from 4.17 €/ks
from  12.51 €
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Order Code: HM521b15
TP-Link Tapo L530E, Smart WiFi bulb full colour (pack of 2) - LED Bulb
4.5 52×
TP-Link Tapo L530E, Smart WiFi bulb full colour (pack of 2)
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,7 W, 230 V, luminous flux 806 lm, diameter of 6 cm, WiFi 2,4 GHz, compatible with Manufacturer app, energy label F, 2 in package
19.90 €
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Order Code: TpLNk21t54
TP-Link Tapo L510E, Smart WiFi bulb - LED Bulb
4.6 79×
TP-Link Tapo L510E, Smart WiFi bulb
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 60 W, 230 V, luminous flux 806 lm, warm light, diameter of 6 cm, WiFi 2,4 GHz, compatible with Manufacturer app, lifespan 15000 h, energy label F, 1 piece in package
8.69 €
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Order Code: TpLNk2020L510E
Philips LED 100WA60 E27 2700K FR UE SRT4 - LED Bulb
4.7 9×
Philips LED 100WA60 E27 2700K FR UE SRT4
LED Bulb - lamp cap E27, power input 100 W, 230 V, luminous flux 1535 lm, warm light (2700 K), diameter of 6 cm, lifespan 50000 h, energy label A, 1 piece in package
10 €
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Order Code: PHLS25036
EMOS Smart LED bulb GoSmart A60 E27 11 W (75 W) 1 050 lm RGB dimmable Wi-Fi - LED Bulb
3 variants
4.2 132×
EMOS Smart LED bulb GoSmart A60 E27 11 W (75 W) 1 050 lm RGB dimmable Wi-Fi
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1050 lm, adjustable light temperature (2700-6500 K), diameter of 6 cm, WiFi 2,4 GHz, compatible with Tuya, EMOS GoSmart, control via app in both Czech and English, lifespan 20000 h, energy label F, 1 piece in package
from  6.57 €
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Order Code: HM521b3
Philips Hue White 9.5W 1100 E27 small starter kit - LED Bulb
2 colors
4.9 22×
Philips Hue White 9.5W 1100 E27 small starter kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9,5 W, 230 V, luminous flux 1055 lm, warm light (2700 K), diameter of 6,1 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 2 in package
69.90 €
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In stock 3 pcs
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Order Code: PHL21009
TP-Link Tapo L530E, Smart WiFi bulb colour - LED Bulb
4.6 251×
TP-Link Tapo L530E, Smart WiFi bulb colour
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,7 W, 230 V, luminous flux 806 lm, diameter of 6 cm, WiFi 2,4 GHz, compatible with Manufacturer app, control via app in both Czech and English, lifespan 15000 h, energy label F, 1 piece in package
10.90 €
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Order Code: TpLNk2008
Philips LED 12.5-100W, E27 4000K, 2pcs - LED Bulb
2 variants
4.8 153×
Philips LED 12.5-100W, E27 4000K, 2pcs
LED Bulb - lamp cap E27, power input 12,5 W, 230 V, luminous flux 1521 lm, neutral light (4000 K), diameter of 6 cm, lifespan 15000 h, energy label E, 2 in package - from 5.06 €/pcs
from  10.11 €
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In stock > 10 pcs
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Order Code: PHL19087
Govee Smart RGBWW 9 W-60 W, 800 lm, E27, Long Life - LED Bulb
4.8 26×
Govee Smart RGBWW 9 W-60 W, 800 lm, E27, Long Life
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 800 lm, adjustable light temperature (2700-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, GOVEE Home, control via app in English, lifespan 25000 h, energy label F, 1 piece in package
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 9.81 €
10.90 €
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Order Code: Govee24018
Philips Hue White Ambiance 5.1W MR16 2P EU - LED Bulb
2 variants
5.0 1×
Philips Hue White Ambiance 5.1W MR16 2P EU
LED Bulb - smart, lamp cap GU5,3 - lamp cap GU5,3, power input 5,1 W, 230 V, luminous flux 400 lm, adjustable light temperature (2200-6500 K), diameter of 5 cm, 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, 2 in package
58.90 €
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In stock > 5 pcs
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Order Code: PHLS23019
Solight LED bulb, spot, 7W, GU10, 6000K, 595lm, white - LED Bulb
4.8 26×
Solight LED bulb, spot, 7W, GU10, 6000K, 595lm, white
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 595 lm, cool light (6000 K), diameter of 5 cm, lifespan 35000 h, energy label E, 1 piece in package
Amazing Deal 2.39 €
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In stock > 50 pcs
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Order Code: Solight24055
AlzaPower LED 8-50W, E14, P45, 2700K, set of 2 - LED Bulb
4.6 93×
AlzaPower LED 8-50W, E14, P45, 2700K, set of 2
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 720 lm, warm light (2700 K), diameter of 4,5 cm, lifespan 25000 h, energy label F, 2 in package - 2.25 €/ks
Great price 4.49 €
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In stock > 20 pcs
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Order Code: APWLED-0011
Philips LED Classic 4.3-40W, E14 2700K, 3pcs - LED Bulb
4.6 60×
Philips LED Classic 4.3-40W, E14 2700K, 3pcs
LED Bulb - lamp cap E14, power input 4,3 W, 230 V, luminous flux 470 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 15000 h, energy label F, 3 in package - from 2.93 €/pcs
from  8.78 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHL19079
AlzaPower LED 8-75W, E27, 2500K, Amber Filament, set of 2 - LED Bulb
4.9 25×
AlzaPower LED 8-75W, E27, 2500K, Amber Filament, set of 2
LED Bulb - lamp cap E27, power input 8 W, 230 V, luminous flux 1055 lm (2500 K), diameter of 6 cm, lifespan 25000 h, energy label E, 2 in package - 2.85 €/ks
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. 3.98 €
5.69 €
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In stock 3 pcs
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Info
Order Code: APWLED-0016
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / neutral white, 3 pcs - LED Bulb
10+ variants
4.8 414×
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / neutral white, 3 pcs
LED Bulb - lamp cap E27, power input 3,8 W, 230 V, luminous flux 806 lm, neutral light (4000 K), diameter of 6 cm, lifespan 50000 h, energy label A, 3 in package - from 2.64 €/ks
from  7.91 €
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In stock > 10 pcs
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Order Code: HM521b17
EMOS GoSmart A65 E27 14 W (94 W) 1400 lm RGB dimmable Zigbee - LED Bulb
4.1 43×
EMOS GoSmart A65 E27 14 W (94 W) 1400 lm RGB dimmable Zigbee
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 14 W, 230 V, luminous flux 1400 lm, adjustable light temperature (2700-6500 K), diameter of 6,5 cm, WiFi 2,4 GHz and WiFi 5 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
Great price 11.90 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HM521b11
Philips 40W P45 E14 2700K FR UE SRT4 - LED Bulb
3.0 2×
Philips 40W P45 E14 2700K FR UE SRT4
LED Bulb - lamp cap E14, 230 V, luminous flux 485 lm, warm light (2700 K), lifespan 50000 h, energy label A, 1 piece in package
5.99 €
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In stock > 5 pcs
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Info
Order Code: PHLS25050
AlzaPower LED 6-50W, E14, 2700K, Filament, set of 2 - LED Bulb
4.6 134×
AlzaPower LED 6-50W, E14, 2700K, Filament, set of 2
LED Bulb - lamp cap E14, power input 6 W, luminous flux 750 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 25000 h, energy label E, 2 in package - from 2.03 €/ks
Buy with code ALZADAYS20AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 20 % Rabatt mit dem Code ALZADAYS20AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 3.59 €
from  4.05 €
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In stock > 20 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: APWLED-0013
Philips Hue White 5,5W GU10 set 2pcs - LED Bulb
4.9 16×
Philips Hue White 5,5W GU10 set 2pcs
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 5,2 W, 230 V, luminous flux 400 lm, warm light (2700 K), diameter of 5 cm, Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label E, 2 in package
from  34.86 €
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In stock 5 pcs
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Info
Order Code: PHL18146
Philips Hue White Ambiance 8,1W 1100 E27 2pcs - LED Bulb
4.5 2×
Philips Hue White Ambiance 8,1W 1100 E27 2pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,1 W, 230 V, luminous flux 1100 lm (1000 K), Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label D, 2 in package
68.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS25082
Yeelight Smart LED Bulb W4 Lite(Multicolour) - 4 pack - LED Bulb
2 sizes
3.9 52×
Yeelight Smart LED Bulb W4 Lite(Multicolour) - 4 pack
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, compatible with Apple Home, Google Home, Samsung SmartThings, control via app in English, lifespan 25000 h, energy label F, 4 in package
34.90 €
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In stock > 5 pcs
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Info
Order Code: YeeLa57
EMOS Smart LED bulb GoSmart candle E14 4,8 W (40 W) 470lm RGB dimmable Zigbee - LED Bulb
3.5 11×
EMOS Smart LED bulb GoSmart candle E14 4,8 W (40 W) 470lm RGB dimmable Zigbee
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 5 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, EMOS GoSmart, control via app in both Czech and English, lifespan 20000 h, energy label F, 1 piece in package
from  9.81 €
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HM521b8
EMOS Smart LED bulb GoSmart A60 E27 9 W (60 W) 806 lm RGB dimmable Zigbee - LED Bulb
4.4 13×
EMOS Smart LED bulb GoSmart A60 E27 9 W (60 W) 806 lm RGB dimmable Zigbee
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, 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  9.89 €
Buy
In stock > 10 pcs
Order Code: HM521b9

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 762 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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