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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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757 Results
Nedis LED bulb, E14, T22, for refrigerator, 1,5 W, 100 lm - LED Bulb
4.8 25×
Nedis LED bulb, E14, T22, for refrigerator, 1,5 W, 100 lm
LED Bulb - lamp cap E14, power input 1,5 W, 230 V, luminous flux 100 lm, lifespan 15000 h, energy label G, 1 piece in package
5.20 €
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In stock > 20 pcs
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Order Code: Nedis24018
Philips LED 60W A60 E27 2700K FR UE SRT4 - LED Bulb
4.5 8×
Philips LED 60W A60 E27 2700K FR UE SRT4
LED Bulb - lamp cap E27, power input 60 W, 230 V, luminous flux 840 lm, warm light (2700 K), diameter of 6 cm, lifespan 50000 h, energy label A, 1 piece in package
5.99 €
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In stock > 10 pcs
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Order Code: PHLS25029
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, neutral white, 3 pcs - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, neutral white, 3 pcs
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 806 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 3 in package - 2.30 €/ks
Discounted -10 % 6.89 € 7.69 €
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In stock > 10 pcs
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Order Code: EMOS24218
EMOS Classic candle, E14, 2,5 W (32 W), 350 lm, warm white - LED Bulb
9 variants
4.9 115×
EMOS Classic candle, E14, 2,5 W (32 W), 350 lm, warm white
LED Bulb - lamp cap E14, power input 2,5 W, 230 V, luminous flux 350 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 30000 h, energy label D, 1 piece in package
from  2.15 €
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In stock 5 pcs
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Order Code: EMOS24078
IMMAX NEO LITE Smart bulb LED E14 6W RGB+CCT colour and white, dimmable, WiFi, P45 - LED Bulb
4.4 30×
IMMAX NEO LITE Smart bulb LED E14 6W RGB+CCT colour and white, dimmable, WiFi, P45
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 6 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 4,5 cm, WiFi 2,4 GHz, 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
Amazing Deal from  7.01 €
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In stock > 10 pcs
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Order Code: IMXX21389
Retlux RLL 506 - LED Lamp
4.9 24×
Retlux RLL 506
LED Lamp 25000hod, 1x 8W, T5, 230, 640lm, cool white 4000K, cable 1.5m
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. 13.59 €
15.10 €
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In stock > 10 pcs
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Order Code: RTX115b
Nedis LED bulb, E14, T26, for refrigerator, 2 W, 150 lm - LED Bulb
4.9 27×
Nedis LED bulb, E14, T26, for refrigerator, 2 W, 150 lm
LED Bulb - lamp cap E14, power input 2 W, 230 V, luminous flux 150 lm, lifespan 15000 h, energy label G, 1 piece in package
4.39 €
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In stock > 10 pcs
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Order Code: Nedis24019
Wi-Fi BLE 40W C37 E14 922-65 RGB 3CT/6 - LED Bulb
5.0 1×
Wi-Fi BLE 40W C37 E14 922-65 RGB 3CT/6
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,9 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 3,9 cm, WiFi 2,4 GHz and Bluetooth, control via app in both Czech and English, lifespan 15000 h, energy label F, 3 in package
38.90 €
Buy
In stock 4 pcs
Order Code: WiZ23016
RETLUX RLL 420 GU5.3 spot 7W 12V WW - LED Bulb
4.5 25×
RETLUX RLL 420 GU5.3 spot 7W 12V WW
LED Bulb - lamp cap GU5,3, power input 7 W, 12 V, luminous flux 660 lm, diameter of 5 cm, lifespan 25000 h, energy label F, 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. 4.17 €
4.90 €
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In stock > 20 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX17119
IMMAX NEO LITE E14 6W RGB+CCT, colour and white WiFi - pack of 3 - LED Bulb
4.3 51×
IMMAX NEO LITE E14 6W RGB+CCT, colour and white WiFi - pack of 3
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 6 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 3,7 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, 3 in package - from 6.57 €/pcs
from  19.72 €
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In stock > 5 pcs
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Order Code: IMXX21368
EMOS LED Bulb Classic JC A++ 4,5W E14 Warm White - LED Bulb
2 variants
4.7 81×
EMOS LED Bulb Classic JC A++ 4,5W E14 Warm White
LED Bulb - lamp cap E14, power input 4,5 W, 230 V, luminous flux 465 lm, warm light (3000 K), diameter of 2 cm, lifespan 30000 h, energy label F, 1 piece in package
from  4.49 €
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In stock > 5 pcs
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Info
Order Code: EMS19001
Philips LED Classic Spot 4.6-50W, GU10, 2700K, 3-Pack - LED Bulb
4 variants
4.8 239×
Philips LED Classic Spot 4.6-50W, GU10, 2700K, 3-Pack
LED Bulb - lamp cap GU10, power input 4,6 W, 230 V, luminous flux 355 lm, warm light (2700 K), diameter of 5 cm, lifespan 15000 h, energy label F, 3 in package - 3.97 €/pcs
11.90 €
Buy
In stock > 5 pcs
Order Code: ESO125b5
Solight LED E14 6W 4000K - LED Bulb
4.8 43×
Solight LED E14 6W 4000K
LED Bulb - lamp cap E14, power input 6 W, neutral light (4000 K), diameter of 3,7 cm, energy label F, 1 piece in package
1.99 €
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In stock > 10 pcs
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Info
Order Code: SD078p
Philips Hue LG Triangle - LED Bulb
Philips Hue LG Triangle
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
Amazing Deal 87.90 €
Buy
In stock 2 pcs
Order Code: PHLS24_005
EMOS Classic JC G4 1,9 W (21 W) 200 lm, warm white, 2 pcs - LED Bulb
4 variants
4.3 240×
EMOS Classic JC G4 1,9 W (21 W) 200 lm, warm white, 2 pcs
LED Bulb - lamp cap G4, power input 1,9 W, 12 V, luminous flux 200 lm, warm light (3000 K), diameter of 1 cm, lifespan 30000 h, energy label F, 2 in package - from 3.33 €/ks
Amazing Deal from  6.65 €
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In stock > 10 pcs
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Order Code: EMOS24_001
Philips LED Classic 4.6-50 W, GU10, 2700 K, 2-pack - LED Bulb
4 variants
4.8 239×
Philips LED Classic 4.6-50 W, GU10, 2700 K, 2-pack
LED Bulb - lamp cap GU10, power input 4,6 W, 230 V, luminous flux 355 lm, warm light (2700 K), diameter of 5 cm, lifespan 15000 h, energy label F, 2 in package - 3.05 €/pcs
Amazing Deal 6.10 €
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In stock 2 pcs
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Info
Order Code: ESO138a1
EMOS Classic Mini Globe, E14, 2.5 W (32 W), 350 lm, warm white - LED Bulb
9 variants
4.8 96×
EMOS Classic Mini Globe, E14, 2.5 W (32 W), 350 lm, warm white
LED Bulb - lamp cap E14, power input 2,5 W, 230 V, luminous flux 350 lm, warm light (2700 K), diameter of 4,5 cm, lifespan 30000 h, energy label D, 1 piece in package
from  3.51 €
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In stock > 50 pcs
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Info
Order Code: EMOS24092
MOES Matter Wi-Fi Bulb, RGB + CW, 10W, E27 - LED Bulb
4.3 18×
MOES Matter Wi-Fi Bulb, RGB + CW, 10W, E27
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, Tuya, Samsung SmartThings, Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
10.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Moes2403
Philips LED 5,2-75W, E27, 4000K, A - LED Bulb
2 variants
4.4 45×
Philips LED 5,2-75W, E27, 4000K, A
LED Bulb - lamp cap E27, power input 5,2 W, 230 V, luminous flux 1095 lm, neutral light (4000 K), diameter of 7 cm, lifespan 50000 h, energy label A, 1 piece in package
8.80 €
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHL22051
WiZ colours 75W E27 G95 - LED Bulb
4.9 13×
WiZ colours 75W E27 G95
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1055 lm, adjustable light temperature (2200-6500 K), WiFi 2,4 GHz, compatible with Samsung SmartThings, IFTTT, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
Discounted -6 % 13.90 € 14.90 €
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: WiZ21014
TESLA LED Bulb Mini-globe BULB E14, 8W, Day White - LED Bulb
4 variants
4.8 110×
TESLA LED Bulb Mini-globe BULB E14, 8W, Day White
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 900 lm, neutral light (4000 K), diameter of 4,5 cm, lifespan 25000 h, energy label E, 1 piece in package
3.70 €
Buy
In stock > 20 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TSL19012
Philips Hue White Ambiance 6W 810 E27 4pcs - LED Bulb
3 variants
Philips Hue White Ambiance 6W 810 E27 4pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6 W, 230 V, luminous flux 800 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, 4 in package
86.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS25080
Philips Hue White Ambiance 8,1W 1100 E27 - LED Bulb
5.0 1×
Philips Hue White Ambiance 8,1W 1100 E27
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, 1 piece in package
41.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS25081
Tesla - LED bulb BULB, E27, 5W, 230V, 500lm, 25 000h, 3000K warm white, 220deg - LED Bulb
10+ variants
4.8 212×
Tesla - LED bulb BULB, E27, 5W, 230V, 500lm, 25 000h, 3000K warm white, 220deg
LED Bulb - lamp cap E27, power input 5 W, 230 V, luminous flux 500 lm, warm light (3000 K), diameter of 5,5 cm, lifespan 25000 h, energy label F, 1 piece in package
Discounted -5 % 2.39 € 2.54 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TslLight23_001
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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

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