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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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842 Results
OSRAM gold dimmable LED bulb E27 5,8 W VINTAGE GLOBE, warm white - LED Bulb
OSRAM gold dimmable LED bulb E27 5,8 W VINTAGE GLOBE, warm white
LED Bulb - lamp cap E27, power input 5,8 W, 230 V, luminous flux 806 lm, warm light (2200 K), diameter of 12,4 cm, lifespan 15000 h, energy label G, 1 piece in package
18.87 €
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In stock 2 pcs at the supplier's
Order Code: osra25083
OSRAM dimmable LED filament lamp E27 11 W VINTAGE, warm white - LED Bulb
OSRAM dimmable LED filament lamp E27 11 W VINTAGE, warm white
LED Bulb - lamp cap E27, power input 11 W, 230 V, luminous flux 806 lm, warm light (1800 K), diameter of 12,4 cm, lifespan 15000 h, energy label G, 1 piece in package
25.18 €
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In stock 5 pcs at the supplier's
Order Code: osra25067
OSRAM dimmable LED bulb E27 4,8 W BIG GLOBE, warm white - LED Bulb
OSRAM dimmable LED bulb E27 4,8 W BIG GLOBE, warm white
LED Bulb - lamp cap E27, power input 4,8 W, luminous flux 806 lm, warm light (1800 K), lifespan 15000 h, energy label G, 1 piece in package
43.67 €
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In stock 4 pcs at the supplier's
Order Code: osra25063
OSRAM dimmable LED smoke lamp 7,8 W VINTAGE, warm white - LED Bulb
OSRAM dimmable LED smoke lamp 7,8 W VINTAGE, warm white
LED Bulb - lamp cap E27, power input 7,8 W, 230 V, luminous flux 806 lm, warm light (1800 K), diameter of 13,8 cm, lifespan 15000 h, energy label G, 1 piece in package
20.13 €
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In stock 3 pcs at the supplier's
Order Code: osra25062
OSRAM black round LED bulb E27 4 W VINTAGE, warm white - LED Bulb
OSRAM black round LED bulb E27 4 W VINTAGE, warm white
LED Bulb - lamp cap E27, power input 4 W, luminous flux 140 lm, warm light (1800 K), lifespan 15000 h, energy label G, 1 piece in package
21.39 €
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In stock 3 pcs at the supplier's
Order Code: osra25027
OSRAM retro LED bulb E27 4W VINTAGE warm white - LED Bulb
OSRAM retro LED bulb E27 4W VINTAGE warm white
LED Bulb - lamp cap E27, power input 4 W, luminous flux 300 lm, warm light (2000 K), lifespan 15000 h, energy label G, 1 piece in package
29.38 €
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In stock > 5 pcs at the supplier's
Order Code: osra25025
OSRAM Smoke LED bulb E27 4.8W VINTAGE ELIPSE/OVAL, warm white - LED Bulb
OSRAM Smoke LED bulb E27 4.8W VINTAGE ELIPSE/OVAL, warm white
LED Bulb - lamp cap E27, power input 4,8 W, luminous flux 100 lm, warm light (1800 K), lifespan 15000 h, 1 piece in package
34.85 €
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In stock 3 pcs at the supplier's
Order Code: osra25019
Rabalux LED bulb Spiral Filament Amber ST64 4W E27 - LED Bulb
Rabalux LED bulb Spiral Filament Amber ST64 4W E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 4 W, 230 V, luminous flux 300 lm, warm light (2700 K), diameter of 6 cm, WiFi 5 GHz, compatible with Tuya, control via app in Czech, lifespan 25000 h, energy label G, 1 piece in package
20.97 €
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In stock > 5 pcs at the supplier's
Order Code: RBLUX053
Philips 13-100W LED, E27, 2700K, matte (6 pcs) - LED Bulb
4.8 158×
Philips 13-100W LED, E27, 2700K, matte (6 pcs)
LED Bulb , power input 13 W, 230 V, luminous flux 1521 lm, warm light (2700 K), diameter of 6 cm, lifespan 15000 h, energy label E, 6 pc(s) in package
from  23.74 €
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On the way > 5 pcs
Expected 18/08/2026
Order Code: ESO110c2
Philips Hue White 5,5W GU10 set 2pcs - LED Bulb
4.9 18×
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  42.64 €
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On the way 4 pcs
Expected 31/07/2026
Order Code: PHL18146
IMMAX NEO LITE Smart 3x LED bulb E14 6W RGB+CCT colour and white, dimmable, WiFi, P45 - LED Bulb
4.3 10×
IMMAX NEO LITE Smart 3x LED bulb 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, 3 in package
from  19.71 €
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On the way 2 pcs
Expected 27/07/2026
Order Code: IMXX21388
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
91.90 €
Buy
On the way 2 pcs
Expected 27/07/2026
Order Code: PHLS24_006
Philips Hue White 7W 810 E27 2pcs - LED Bulb
Philips Hue White 7W 810 E27 2pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, adjustable light temperature (2700-2700 K), 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
30.90 €
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On the way > 5 pcs
Expected 09/08/2026
Order Code: PHLS25074
Philips Hue White and colour Ambiance 4.3W 350 GU10 3pcs - LED Bulb
2 variants
4.7 48×
Philips Hue White and colour Ambiance 4.3W 350 GU10 3pcs
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,2 W, 230 V, luminous flux 400 lm (2000 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, 3 in package
171.90 €
From 4.08 € per month
Buy
Ordered on request
Order Code: PHL21032
IMMAX NEO Smart set 3x bulb LED E27 11W RGB+CCT colour and white, dimmable, Zigbee 3.0 - LED Bulb
3.5 13×
IMMAX NEO Smart set 3x bulb LED E27 11W RGB+CCT colour and white, dimmable, Zigbee 3.0
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, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Philips Hue, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
Great price 31.40 €
Buy
Ordered on request
Order Code: IMXX21378
IMMAX NEO LITE E27 9W RGB+CCT, colour and white, WiFi - pack of 3 - LED Bulb
4.0 15×
IMMAX NEO LITE E27 9W RGB+CCT, colour and white, WiFi - pack 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 and Bluetooth, compatible with Apple Siri shortcuts, Tuya, Samsung SmartThings, Lidl Home, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
Amazing Deal 22.24 € Save 2.66 €
Buy
Ordered on request
Order Code: IMMX_21_25
Philips Hue White 10W 1100 E27 - LED Bulb
Philips Hue White 10W 1100 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 10 W, 230 V, luminous flux 1055 lm, adjustable light temperature (2700-2700 K), Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label E, 1 piece in package
24.90 €
Buy
Ordered on request
Order Code: PHLS25076
Philips Hue White 7W 810 E27 4pcs - LED Bulb
Philips Hue White 7W 810 E27 4pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, adjustable light temperature (2700-2700 K), Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label E, 4 in package
54.90 €
Buy
Ordered on request
Order Code: PHLS25075
EMOS Classic JC, G9, 4,2 W (40 W), 470 lm, neutrální bílá, stmívatelná - LED Bulb
5 variants
4.7 246×
EMOS Classic JC, G9, 4,2 W (40 W), 470 lm, neutrální bílá, stmívatelná
LED Bulb - lamp cap G9, power input 4 W, 230 V, luminous flux 470 lm, neutral light, diameter of 1,8 cm, lifespan 25000 h, energy label E, 1 piece in package
New arrival 5.84 €
Buy
Ordered on request
Order Code: EMOS26113
EMOS Classic JC, G9, 4,2 W (40 W), 470 lm, teplá bílá, stmívatelná - LED Bulb
5 variants
4.7 246×
EMOS Classic JC, G9, 4,2 W (40 W), 470 lm, teplá bílá, stmívatelná
LED Bulb - lamp cap G9, power input 4 W, 230 V, luminous flux 470 lm, warm light, diameter of 1,8 cm, lifespan 25000 h, energy label E, 1 piece in package
New arrival 5.84 €
Buy
Ordered on request
Order Code: EMOS26112
Philips Hue White and colour Ambiance 5,1W E14 Kapka - LED Bulb
Philips Hue White and colour Ambiance 5,1W E14 Kapka
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 5,1 W, 230 V, luminous flux 470 lm (2000 K), diameter of 4,5 cm, Bluetooth, compatible with Apple Home, Google Home, Tuya, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
69.90 €
Buy
Ordered on request
Order Code: PHLS26047
EMOS Classic MR16 White, GU10, 5.8W (75W), 565lm, Cool White - LED Bulb
EMOS Classic MR16 White, GU10, 5.8W (75W), 565lm, Cool White
LED Bulb - lamp cap GU10, power input 5,8 W, 230 V, luminous flux 565 lm, cool light (6500 K), diameter of 5 cm, lifespan 30000 h, energy label E, 1 piece in package
New arrival 3.32 €
Buy
Ordered on request
Order Code: EMOS26085
Philips Hue White and colour Ambiance 5,1W E14 Drop 2 pcs - LED Bulb
Philips Hue White and colour Ambiance 5,1W E14 Drop 2 pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 5,1 W, 230 V, luminous flux 470 lm (2000 K), diameter of 4,5 cm, Bluetooth, compatible with Apple Home, Google Home, Tuya, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 2 in package
118.90 €
Buy
Ordered on request
Order Code: PHLS26048
Rabalux SMD-LED 79231 - LED Bulb
Rabalux SMD-LED 79231
LED Bulb - lamp cap E27, power input 16 W, 230 V, luminous flux 1600 lm, adjustable light temperature (3000-6500 K), diameter of 23 cm, lifespan 25000 h, energy label F, 1 piece in package
29.90 €
Buy
Ordered on request
Order Code: Rbx26092
AlzaPlus+ deals Light Bulbs & Fluorescent Lights Sorted by Socket by Socket LED Bulbs LED bulbs Fluorescent Tube Lamps Fluorescent Tubes Efficient Lamps Efficient Smart Light Bulbs Light Sources Vintage & Retro Light Bulbs Retro Spotlight Bulbs Spotlight Light Bulb Value Packs Value Packs Car Lightbulbs Car Bulbs Oven Light Bulbs Oven AlzaPower Light Bulbs & Fluorescent Lights AlzaPower Jak vybrat žárovku
 

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