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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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909 Results
RETLUX REL 39 LED R50 4x6W E14 WW - LED Bulb
2 variants
4.7 63×
RETLUX REL 39 LED R50 4x6W E14 WW
LED Bulb - lamp cap E14, power input 6 W, 230 V, luminous flux 510 lm, warm light (3000 K), diameter of 5 cm, lifespan 25000 h, energy label F, 4 in package
6.54 €
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Order Code: RTLX17138
EMOS LED Bulb Classic JC, A++, 4.5W, E14, Neutral White - LED Bulb
2 variants
4.7 81×
EMOS LED Bulb Classic JC, A++, 4.5W, E14, Neutral White
LED Bulb - lamp cap E14, power input 4,5 W, 230 V, luminous flux 465 lm, neutral light (4100 K), diameter of 2 cm, lifespan 30000 h, energy label F, 1 piece in package
from  5.04 €
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In stock > 10 pcs
Order Code: EMS19002
RETLUX RLL 636 G45 E14 miniG 8W CW D - LED Bulb
6 variants
4.9 30×
RETLUX RLL 636 G45 E14 miniG 8W CW D
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 1080 lm, neutral light (4000 K), lifespan 25000 h, energy label D, 1 piece in package
4.59 €
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In stock > 20 pcs
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Order Code: RTLX24057
EMOS Classic Mini Globe, E27, 2.5 W (32 W), 350 lm, warm white - LED Bulb
7 variants
4.9 144×
EMOS Classic Mini Globe, E27, 2.5 W (32 W), 350 lm, warm white
LED Bulb - lamp cap E27, 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
2.19 €
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In stock > 50 pcs
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Order Code: EMOS24082
Philips Hue White and colour Ambiance 5W GU10 Starter Kit PRO - LED Bulb
5.0 1×
Philips Hue White and colour Ambiance 5W GU10 Starter Kit PRO
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 5 W, 230 V, luminous flux 400 lm (2000 K), Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label E, 3 in package
213.90 €
From 4.92 € per month
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In stock > 5 pcs
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Order Code: PHLS25089
AQARA LED Bulb T2 GU10, CCT (LB-L03E) - LED Bulb
3.0 1×
AQARA LED Bulb T2 GU10, CCT (LB-L03E)
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,9 W, 230 V, luminous flux 450 lm, adjustable light temperature (2700-6500 K), diameter of 5 cm, Bluetooth, compatible with Aqara Home, Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
Amazing Deal 21.90 € Save 3 €
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In stock 3 pcs
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Order Code: Aqara25007
RETLUX RLL 629 C37 E14 candle 8W WW D - LED Bulb
5 variants
4.5 50×
RETLUX RLL 629 C37 E14 candle 8W WW D
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 1080 lm, warm light (3000 K), lifespan 25000 h, energy label D, 1 piece in package
3.29 €
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In stock 2 pcs
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Order Code: RTLX24050
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  1.80 €
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In stock > 50 pcs
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Order Code: EMOS24092
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / neutral white - LED Bulb
10+ variants
4.8 416×
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / neutral white
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, 1 piece in package
from  4.42 €
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In stock > 20 pcs
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Order Code: HM521b16
EMOS Smart LED bulb GoSmart A60 E27 9 W (60 W) 806 lm RGB dimmable Wi-Fi - LED Bulb
2 variants
4.2 132×
EMOS Smart LED bulb GoSmart A60 E27 9 W (60 W) 806 lm RGB dimmable Wi-Fi
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
Great price 7.79 €
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In stock 5 pcs
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Order Code: HM521b2
Philips Hue White and colour Ambiance 11,8W 1600 E27 - LED Bulb
5.0 1×
Philips Hue White and colour Ambiance 11,8W 1600 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11,8 W, 230 V, luminous flux 1521 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
85.90 €
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In stock > 5 pcs
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Order Code: PHLS25088
RETLUX RLL 635 G45 E14 miniG 8W WW D - LED Bulb
6 variants
4.9 30×
RETLUX RLL 635 G45 E14 miniG 8W WW D
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 1080 lm, warm light (3000 K), lifespan 25000 h, energy label D, 1 piece in package
3.69 €
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In stock > 5 pcs
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Order Code: RTLX24055
RETLUX RLL 298 G4 3,5 W LED 12V WW - LED Bulb
4.7 12×
RETLUX RLL 298 G4 3,5 W LED 12V WW
LED Bulb - lamp cap G4, power input 3,5 W, 12 V, luminous flux 380 lm, warm light (3000 K), diameter of 1,5 cm, lifespan 15000 h, energy label F, 1 piece in package
3.69 €
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In stock > 10 pcs
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Order Code: RTLX22_005
WiZ colours 40W E14 C37 - LED Bulb
4.7 27×
WiZ colours 40W E14 C37
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,8 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 3,9 cm, 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
14.90 €
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In stock > 5 pcs
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Order Code: WiZ21009
Niceboy SmartBulb RGB E14 - LED Bulb
4.4 38×
Niceboy SmartBulb RGB E14
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 3,6 cm, WiFi 2,4 GHz, compatible with Niceboy ION, control via app in Czech, lifespan 25000 h, energy label F, 1 piece in package
10.90 €
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In stock > 5 pcs
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Info
Order Code: NCB21_05
Tesla Filament A class, E27, 2W, 420lm, 4000K daylight white, 360deg, clear, 230V, 25 000h - LED Bulb
5 variants
4.7 26×
Tesla Filament A class, E27, 2W, 420lm, 4000K daylight white, 360deg, clear, 230V, 25 000h
LED Bulb - lamp cap E27, power input 2 W, 230 V, luminous flux 470 lm, neutral light (4000 K), diameter of 10,5 cm, lifespan 25000 h, energy label A, 1 piece in package
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 4.95 €
6.19 €
Buy
In stock > 10 pcs
Order Code: TES24005
Philips LED 4-60W, E27, 4000K, A - LED Bulb
4.6 22×
Philips LED 4-60W, E27, 4000K, A
LED Bulb , power input 4 W, luminous flux 840 lm, neutral light (4000 K), 1 piece in package
9.90 €
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHL22006
Yeelight GU10 Smart Bulb W1 (Dimmable) - LED Bulb
4.4 27×
Yeelight GU10 Smart Bulb W1 (Dimmable)
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,8 W, 230 V, luminous flux 350 lm, warm light, diameter of 5 cm, WiFi 2,4 GHz, compatible with Samsung SmartThings, control via app in both Czech and English, energy label G, 1 piece in package
Buy with code ALZADNI15 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky. 6.88 €
8.09 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: YeeLa48
Philips LED Candle 2,8-25W, E14, 2700K, Milky - LED Bulb
4.8 22×
Philips LED Candle 2,8-25W, E14, 2700K, Milky
LED Bulb - lamp cap E14, power input 2,8 W, 230 V, luminous flux 250 lm, warm light (2700 K), diameter of 3,6 cm, lifespan 15000 h, energy label F, 1 piece in package
8.19 €
Buy
In stock > 5 pcs
Order Code: PHL22001
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
69.90 €
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In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS25082
Niceboy SmartBulb RGB E27, 9 W, set of 3 - LED Bulb
4.2 19×
Niceboy SmartBulb RGB E27, 9 W, set of 3
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 Niceboy ION, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
28.90 €
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NCB24_004
Wi-Fi BLE 50W GU10 922-65 RGB 3CT/6 - LED Bulb
5.0 3×
Wi-Fi BLE 50W GU10 922-65 RGB 3CT/6
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 5 W, 230 V, luminous flux 400 lm, adjustable light temperature (2200-6500 K), diameter of 5 cm, WiFi 2,4 GHz and WiFi 5 GHz, control via app in both Czech and English, lifespan 15000 h, energy label F, 3 in package
40.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: WiZ23020
Meross Smart Wi-Fi LED Bulb Apple HomeKit - LED Bulb
3.8 12×
Meross Smart Wi-Fi LED Bulb Apple HomeKit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, luminous flux 810 lm (2700 K), WiFi 2,4 GHz, compatible with Apple Home, Samsung SmartThings, IFTTT, Manufacturer app, energy label F, 1 piece in package
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 13.52 €
16.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: mer21s21
Philips Hue White Ambiance 4.3W GU10 - LED Bulb
3 variants
4.8 69×
Philips Hue White Ambiance 4.3W GU10
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,3 W, 230 V, luminous flux 350 lm, adjustable light temperature (2200-6500 K), diameter of 5 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
from  34.57 €
Buy
In stock 3 pcs
Order Code: PHL19058
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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 Car Lightbulbs Car Bulbs 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.sk, we currently have a total of 948 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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