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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 Classic spot 4.6-50W, GU10, 2700K, set 6ks - LED Bulb
4 variants
4.8 239×
Philips LED Classic spot 4.6-50W, GU10, 2700K, set 6ks
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, 6 pc(s) in package - 6.15 €/pcs
36.90 €
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In stock > 10 pcs
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Order Code: ESO125b7
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2 - Kit
3 variants
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2
Kit - LED bulb - smart, energy label D, power input 6W, 230 V, luminous flux 800 lm, (1000 K), colour Rendering Index (CRI) 80 Ra, Bluetooth, Compatible with Apple Home, Google Home, Philips Hue, applications in English and Czech, lifetime 25000 h, 4 pieces in a pack + Smart Wireless Controller, 1× CR2032 battery, Compatible with Amazon Alexa and Apple Homekit
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. 108.72 €
Amazing Deal 127.90 €
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Order Code: PHLS25080Bbun
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2 - Kit
3 variants
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2
Kit - LED bulb - smart, energy label D, power input 6W, 230 V, luminous flux 800 lm, (1000 K), colour Rendering Index (CRI) 80 Ra, Bluetooth, Compatible with Apple Home, Google Home, Philips Hue, applications in English and Czech, lifetime 25000 h, 4 pieces in a pack + Smart Wireless Controller, 1× CR2032 battery, Compatible with Amazon Alexa and Apple Homekit
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. 195.42 €
229.90 €
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Order Code: PHLS25085Bbun
Philips Hue White and colour Ambiance 6W E14 set 2pcs - LED Bulb
2 variants
4.9 72×
Philips Hue White and colour Ambiance 6W E14 set 2pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 6 W, 230 V, luminous flux 470 lm (2000 K), diameter of 3,9 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
94.90 €
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Order Code: ESO2557q4
Philips LED 7,3-100W, E27, 4000K, A - LED Bulb
2 variants
4.4 45×
Philips LED 7,3-100W, E27, 4000K, A
LED Bulb - lamp cap E27, power input 7,3 W, 230 V, luminous flux 1535 lm, neutral light (4000 K), diameter of 7 cm, lifespan 50000 h, energy label A, 1 piece in package
Amazing Deal 9.49 €
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In stock 3 pcs
Order Code: PHL22053
TP-Link Tapo L510E, Smart WiFi bulb dimmable (pack of 2) - LED Bulb
4.8 58×
TP-Link Tapo L510E, Smart WiFi bulb dimmable (pack of 2)
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,7 W, 230 V, luminous flux 806 lm, warm light, 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, 2 in package
16.90 €
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Order Code: TpLNk21t2
IMMAX NEO LITE Smart bulb LED E27 11W colour and white, dimmable, WiFi - LED Bulb
4.4 136×
IMMAX NEO LITE Smart bulb LED E27 11W colour and white, dimmable, WiFi
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1055 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
Amazing Deal 8.29 €
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Order Code: IMMX_21_23
EMOS Filament A60 A CLASS / E27 / 5 W (75 W) / 1 060 lm / neutral white, 3 pcs - LED Bulb
10+ variants
4.8 414×
EMOS Filament A60 A CLASS / E27 / 5 W (75 W) / 1 060 lm / neutral white, 3 pcs
LED Bulb - lamp cap E27, power input 5 W, 230 V, luminous flux 1060 lm, neutral light (4000 K), diameter of 6 cm, lifespan 50000 h, energy label A, 3 in package - from 3 €/ks
from  8.99 €
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Order Code: HM521b19
EMOS Led bulb Classic JC 4W G9 warm white, 2 pcs - LED Bulb
7 variants
4.7 237×
EMOS Led bulb Classic JC 4W G9 warm white, 2 pcs
LED Bulb - lamp cap G9, power input 4 W, 230 V, luminous flux 470 lm, warm light (3000 K), diameter of 1,9 cm, lifespan 30000 h, energy label E, 2 in package - from 3.42 €/ks
Amazing Deal from  6.83 €
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Order Code: EMS17118
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
83.90 €
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In stock > 5 pcs
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Order Code: PHLS25088
AlzaPower LED 9-60W, E27, R63, 2700K, set of 2 - LED Bulb
4.7 19×
AlzaPower LED 9-60W, E27, R63, 2700K, set of 2
LED Bulb - lamp cap E27, power input 9 W, 230 V, luminous flux 820 lm, warm light (2700 K), diameter of 6,3 cm, lifespan 25000 h, energy label F, 2 in package - 2.45 €/ks
Great price 4.90 €
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Order Code: APWLED-0011c
TESLA Mini BULB 3W E14 - LED Bulb
4 variants
4.8 110×
TESLA Mini BULB 3W E14
LED Bulb - lamp cap E14, power input 3 W, 230 V, luminous flux 250 lm, warm light (3000 K), diameter of 6 cm, lifespan 25000 h, energy label G, 1 piece in package
2.59 €
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Order Code: EN405m1
AQARA LED Bulb T2 E27, RGB CCT (LB-L02D) - LED Bulb
5.0 13×
AQARA LED Bulb T2 E27, RGB CCT (LB-L02D)
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 10,5 W, 230 V, luminous flux 1100 lm, adjustable light temperature (2000-9000 K), diameter of 6 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
22.90 €
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In stock > 5 pcs
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Order Code: Aqara25006
Philips Hue White Ambiance 6W E14 set 2pcs - LED Bulb
2 variants
4.9 99×
Philips Hue White Ambiance 6W E14 set 2pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 6 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 3,9 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
52.90 €
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In stock > 5 pcs
Order Code: ESO2557q2
Nedis LED bulb, G4, 2 W, 12 V, 200 lm, 3000 K - LED Bulb
5.0 2×
Nedis LED bulb, G4, 2 W, 12 V, 200 lm, 3000 K
LED Bulb - lamp cap G4, power input 2 W, 12 V, luminous flux 200 lm, lifespan 15000 h, energy label F, 1 piece in package
7.79 €
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In stock 5 pcs
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Order Code: Nedis24054
Philips Hue White Ambiance 8W 1100 E27 starter kit - LED Bulb
2 colors
4.8 24×
Philips Hue White Ambiance 8W 1100 E27 starter kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8 W, 230 V, luminous flux 1100 lm, adjustable light temperature (2200-6500 K), diameter of 6 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
111.90 €
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Order Code: PHL21016
Philips Hue White and colour ambiance 9W E27 promo starter kit - LED Bulb
4.7 41×
Philips Hue White and colour ambiance 9W E27 promo starter kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 806 lm (2000 K), diameter of 6 cm, Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
153.90 €
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In stock > 5 pcs
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Info
Order Code: PHL19090
Philips Hue White Filament 7W E27 ST64 - LED Bulb
4.9 13×
Philips Hue White Filament 7W E27 ST64
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 550 lm, warm light (2100 K), Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 15000 h, energy label G, 1 piece in package
32.90 €
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In stock 4 pcs
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Order Code: PHL19026
Philips Hue White and colour Ambiance 9W 1100 E27 starter kit - LED Bulb
5 colors
4.9 48×
Philips Hue White and colour Ambiance 9W 1100 E27 starter kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 1100 lm (2000 K), diameter of 6 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, energy label F, 3 in package
161.90 €
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In stock > 5 pcs
Order Code: PHL21028
Philips Hue White and colour Ambiance 9W 800 E27 4pcs - LED Bulb
2 variants
4.8 157×
Philips Hue White and colour Ambiance 9W 800 E27 4pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 800 lm, adjustable light temperature (2000-6500 K), diameter of 6 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 4 in package
169.90 €
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In stock > 5 pcs
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Info
Order Code: PHL21025
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / warm white, 3 pcs - LED Bulb
10+ variants
4.8 414×
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / warm white, 3 pcs
LED Bulb - lamp cap E27, power input 3,8 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 6 cm, lifespan 50000 h, energy label A, 3 in package - 4.30 €/ks
12.90 €
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In stock > 10 pcs
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Info
Order Code: HM521b13
Philips Hue White and colour Ambiance 4W E14 - LED Bulb
2 variants
4.9 72×
Philips Hue White and colour Ambiance 4W E14
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4 W, 230 V, luminous flux 470 lm (2000 K), diameter of 3,9 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
66.90 €
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In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: ESO2557q3
EMOS Classic MR16 A CLASS/ GU10 / 3 W (40 W) / 535 lm / neutral white - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 A CLASS/ GU10 / 3 W (40 W) / 535 lm / neutral white
LED Bulb - lamp cap GU10, power input 3 W, 230 V, luminous flux 535 lm, neutral light (4000 K), diameter of 5 cm, lifespan 50000 h, energy label A, 1 piece in package
4.19 €
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In stock > 20 pcs
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Info
Order Code: EMOS24165
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
16.90 €
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In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: mer21s21
 

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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