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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
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
23.90 €
Buy
On the way 1 pcs
Expected 21/04/2026
Order Code: PHLS25076
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
New arrival 29.90 €
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On the way > 5 pcs
Expected 04/05/2026
Order Code: PHLS25074
EMOS Oven bulb 15W 300°C E14 - Oven Bulb
4.1 133×
EMOS Oven bulb 15W 300°C E14
Oven Bulb - E14 socket
2.49 €
Buy
Ordered on request
Order Code: EMSD202150
IMMAX NEO LITE E27 11W RGB+CCT, colour and white, WiFi - pack of 3 - LED Bulb
4.2 30×
IMMAX NEO LITE E27 11W RGB+CCT, colour and white, WiFi - pack of 3
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, 3 in package - 7.39 €/pcs
22.18 €
Buy
Ordered on request
Order Code: IMMX_21_24
EMOS Vintage G95 / E27 / 4,5 W (40 W) / 420 lm / warm white - LED Bulb
5.0 3×
EMOS Vintage G95 / E27 / 4,5 W (40 W) / 420 lm / warm white
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, luminous flux 420 lm (2200 K), diameter of 9,5 cm, lifespan 25000 h, energy label F, 1 piece in package
from  5.42 €
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Ordered on request
Order Code: EMOS24163
EMOS Vintage G125 / E27 / 4.5 W (40 W) / 420 lm / warm white - LED Bulb
5.0 1×
EMOS Vintage G125 / E27 / 4.5 W (40 W) / 420 lm / warm white
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, luminous flux 420 lm (2200 K), diameter of 12,5 cm, lifespan 25000 h, energy label F, 1 piece in package
from  8.33 €
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Ordered on request
Order Code: EMOS24162
EMOS Classic candle, E14, 2.5 W (32 W), 350 lm, neutral white - LED Bulb
9 variants
4.9 115×
EMOS Classic candle, E14, 2.5 W (32 W), 350 lm, neutral white
LED Bulb - lamp cap E14, power input 2,5 W, 230 V, luminous flux 350 lm, neutral light (4000 K), diameter of 3,5 cm, lifespan 30000 h, energy label D, 1 piece in package
1.89 €
Buy
Ordered on request
Order Code: EMOS24079
IMMAX NEO GU10 4,8W RGB+CCT, colour and white, Zigbee - pack of 3 - LED Bulb
5.0 1×
IMMAX NEO GU10 4,8W RGB+CCT, colour and white, Zigbee - pack of 3
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,8 W, 230 V, luminous flux 400 lm, adjustable light temperature (2700-6500 K), diameter of 5 cm, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Smartlife, Nedis SmartLife, Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label G, 3 in package - from 8.47 €/ks
from  25.42 €
Buy
Ordered on request
Order Code: IMMX24039
EMOS LED Bulb Classic A60 10.5W E27 warm white - LED Bulb
4.6 25×
EMOS LED Bulb Classic A60 10.5W E27 warm white
LED Bulb - lamp cap E27, power input 10,7 W, 230 V, luminous flux 1060 lm, warm light (2700 K), diameter of 6 cm, lifespan 30000 h, energy label F, 3 in package - 2.50 €/pcs
Buy with code ALZADAYS25DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 25 % Rabatt mit dem Code ALZADAYS25DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 5.62 €
7.49 €
Buy
Ordered on request
Order Code: EMS19027
EMOS DECO CG125A, E27, 4,5 W (24 W), 240 lm, flame - LED Bulb
5.0 1×
EMOS DECO CG125A, E27, 4,5 W (24 W), 240 lm, flame
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, filament, luminous flux 240 lm, warm light (1800 K), diameter of 12,5 cm, lifespan 25000 h, energy label G, 1 piece in package
15.30 €
Buy
Ordered on request
Order Code: EMOS25180
EMOS DECO SMOKED ST64, E27, 4,5 W (19 W), 180 lm, flame - LED Bulb
5.0 1×
EMOS DECO SMOKED ST64, E27, 4,5 W (19 W), 180 lm, flame
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, filament, luminous flux 180 lm, warm light (1800 K), diameter of 6,4 cm, lifespan 25000 h, energy label G, 1 piece in package
Great price 8.19 €
Buy
Ordered on request
Order Code: EMOS25186
EMOS DECO S123, E27, 4 W (16 W), 150 lm, flame - LED Bulb
EMOS DECO S123, E27, 4 W (16 W), 150 lm, flame
LED Bulb - lamp cap E27, power input 4 W, 230 V, filament, luminous flux 150 lm, warm light (1800 K), diameter of 12,3 cm, lifespan 25000 h, energy label G, 1 piece in package
15.30 €
Buy
Ordered on request
Order Code: EMOS25184
EMOS DECO G130OA, E27, 4 W (22 W), 220 lm, flame - LED Bulb
EMOS DECO G130OA, E27, 4 W (22 W), 220 lm, flame
LED Bulb - lamp cap E27, power input 4 W, 230 V, filament, luminous flux 220 lm, warm light (1800 K), diameter of 13 cm, lifespan 25000 h, energy label G, 1 piece in package
19.35 €
Buy
Ordered on request
Order Code: EMOS25182
IMMAX NEO LITE 3x Smart bulb LED E14 6W RGB+CCT, dimmable, WiFi, Beacon, DO - LED Bulb
2.0 5×
IMMAX NEO LITE 3x Smart bulb LED E14 6W RGB+CCT, dimmable, WiFi, Beacon, DO
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, Google Home, Tuya, Lidl Home, Smartlife, Nedis SmartLife, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package - 8.47 €/ks
25.42 €
Buy
Ordered on request
Order Code: IMXX2347
EMOS Classic A60, E27, 14 W (120 W), 1901 lm, teplá bílá - LED Bulb
10+ variants
4.8 170×
EMOS Classic A60, E27, 14 W (120 W), 1901 lm, teplá bílá
LED Bulb - lamp cap E27, power input 14 W, 230 V, luminous flux 1901 lm, warm light (2700 K), diameter of 6 cm, lifespan 30000 h, energy label D, 1 piece in package
New arrival 6.02 €
Buy
Ordered on request
Order Code: EMOS26050
EMOS Classic MR16 bílá, GU10, 7 W (72 W), 1000 lm, studená bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 7 W (72 W), 1000 lm, studená bílá
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 1000 lm, cool light (6500 K), diameter of 5 cm, lifespan 30000 h, energy label D, 1 piece in package
New arrival 4 €
Buy
Ordered on request
Order Code: EMOS26061
EMOS Classic MR16 bílá, GU10, 7 W (72 W), 1000 lm, teplá bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 7 W (72 W), 1000 lm, teplá bílá
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 1000 lm, warm light (3000 K), diameter of 5 cm, lifespan 30000 h, energy label D, 1 piece in package
New arrival 4 €
Buy
Ordered on request
Order Code: EMOS26062
EMOS Classic MR16 bílá, GU10, 5,8 W (75 W), 565 lm, teplá bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 5,8 W (75 W), 565 lm, teplá bílá
LED Bulb - lamp cap GU10, power input 5,8 W, 230 V, luminous flux 565 lm, warm light (3000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 1 piece in package
New arrival 3.19 €
Buy
Ordered on request
Order Code: EMOS26056
EMOS Classic MR16 bílá, GU10, 7 W (72 W), 1000 lm, neutrální bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 7 W (72 W), 1000 lm, neutrální bílá
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 1000 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label D, 1 piece in package
New arrival 4 €
Buy
Ordered on request
Order Code: EMOS26060
EMOS Classic MR16 bílá, GU10, 1,3 W (16 W), 150 lm, teplá bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 1,3 W (16 W), 150 lm, teplá bílá
LED Bulb - lamp cap GU10, power input 1,3 W, 230 V, luminous flux 150 lm, warm light (3000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 1 piece in package
New arrival 1.98 €
Buy
Ordered on request
Order Code: EMOS26059
EMOS Classic MR16 bílá, GU10, 1,3 W (16 W), 150 lm, studená bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 1,3 W (16 W), 150 lm, studená bílá
LED Bulb - lamp cap GU10, power input 1,3 W, 230 V, luminous flux 150 lm, cool light (6500 K), diameter of 5 cm, lifespan 30000 h, energy label E, 1 piece in package
New arrival 1.98 €
Buy
Ordered on request
Order Code: EMOS26058
EMOS Classic MR16 bílá, GU10, 1,3 W (16 W), 150 lm, neutrální bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 1,3 W (16 W), 150 lm, neutrální bílá
LED Bulb - lamp cap GU10, power input 1,3 W, 230 V, luminous flux 150 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 1 piece in package
New arrival 1.98 €
Buy
Ordered on request
Order Code: EMOS26057
EMOS Classic A60, E27, 14 W (120 W), 1901 lm, neutrální bílá - LED Bulb
10+ variants
4.8 170×
EMOS Classic A60, E27, 14 W (120 W), 1901 lm, neutrální bílá
LED Bulb - lamp cap E27, power input 14 W, 230 V, luminous flux 1901 lm, neutral light (4000 K), diameter of 6 cm, lifespan 30000 h, energy label D, 1 piece in package
New arrival 6.02 €
Buy
Ordered on request
Order Code: EMOS26051
EMOS Classic MR16 bílá, GU10, 4 W (39 W), 450 lm, studená bílá - LED Bulb
10+ variants
4.8 212×
EMOS Classic MR16 bílá, GU10, 4 W (39 W), 450 lm, studená bílá
LED Bulb - lamp cap GU10, power input 4 W, 230 V, luminous flux 450 lm, cool light (6500 K), diameter of 5 cm, lifespan 30000 h, energy label E, 1 piece in package
New arrival 2.38 €
Buy
Ordered on request
Order Code: EMOS26055

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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