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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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676 Results
4.8 85×
Tesla LED bulb GU5,3 MR16, 6W, 12V, 540lm, 4000K daylight white
LED Bulb - lamp cap GU5,3, power input 6 W, 12 V, luminous flux 540 lm, neutral light (4000 K), diameter of 5 cm, lifespan 25000 h, energy label G, 1 piece in package
4.30 €
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In stock > 20 pcs
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Order Code: TslLight23_022
4.2 133×
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
7.99 €
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In stock 1 pcs
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Order Code: HM521b2
5.0 12×
RETLUX RLL 445 E27 bulb 30W WW
LED Bulb - lamp cap E27, power input 30 W, 230 V, luminous flux 3200 lm, warm light, diameter of 10 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. 9.27 €
10.90 €
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In stock 5 pcs
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Order Code: RTLX17123
4.7 63×
RETLUX REL 38 LED R50 2x6W E14 W
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, 2 in package
4.49 €
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In stock 3 pcs
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Order Code: RTLX22_040
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 4 pcs
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Order Code: PHL22051
3.7 56×
IMMAX NEO Smart LED bulb 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, 1 piece in package
17.90 €
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Order Code: IMXX21379
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
6.59 €
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In stock 3 pcs
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Order Code: PHL22001
4.8 58×
Solight LED Reflector Bulb, E14, 5W, 4000K
LED Bulb , power input 5 W, 220 V, luminous flux 400 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label F, 1 piece in package
2.50 €
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In stock > 20 pcs
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Order Code: SD078t
Philips Hue Essential White and colour Ambiance 8W 806 E27 Starter Kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8 W, 230 V, luminous flux 806 lm (2200 K), Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 2 in package
94.90 €
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In stock > 5 pcs
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Order Code: PHLS25094
5.0
Philips LED 40W P45 E27 2700K CL UE SRT4
LED Bulb - lamp cap E27, power input 2,3 W, 230 V, luminous flux 485 lm, warm light (2700 K), diameter of 4,5 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: PHLS25020
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
Buy with code ALZADAYS25AT 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 ALZADAYS25AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 21.68 €
28.90 €
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In stock 2 pcs
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Order Code: NCB24_004
4.4
Niceboy SmartBulb RGB E27, 12 W, set of 3
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 12 W, 230 V, luminous flux 1050 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
Buy with code ALZADAYS25AT 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 ALZADAYS25AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 24.68 €
32.90 €
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In stock 3 pcs
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Order Code: NCB24_003
4.2
Wi-Fi BLE 60W A60 A60 E27 822-65 RGB 3CT/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,8 W, 230 V, luminous flux 806 lm, adjustable light temperature (2200-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
25.90 €
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In stock 1 pcs
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Order Code: WiZ23014
4.4 16×
RETLUX RLL 448 GU10 bulb 3step DIMM 6W CW
LED Bulb , power input 6 W, 230 V, luminous flux 510 lm, neutral light (4000 K), diameter of 5 cm, lifespan 25000 h, energy label F, 1 piece in package
4.09 €
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In stock > 10 pcs
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Order Code: RTLX17157
4.4 16×
RETLUX RLL 447 GU10 bulb 3step DIMM 6W WW
LED Bulb , power input 6 W, 230 V, luminous flux 510 lm, warm light (3000 K), diameter of 5 cm, lifespan 25000 h, energy label F, 1 piece in package
4.49 €
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In stock 2 pcs
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Order Code: RTLX17156
4.5 48×
RETLUX RLL 431 C37 E14 candle
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 720 lm, cool light (6500 K), diameter of 3,7 cm, lifespan 25000 h, energy label F, 1 piece in package
3.59 €
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In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX22_060
4.5 48×
RETLUX RLL 428 C37 E14 candle 6W DL
LED Bulb - lamp cap E14, power input 6 W, 230 V, luminous flux 510 lm, cool light (6500 K), diameter of 3,7 cm, lifespan 25000 h, energy label F, 1 piece in package
2.80 €
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In stock > 10 pcs
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Order Code: RTLX22_057
4.4 12×
Tesla - LED bulb FILAMENT RETRO BULB, E27, 4,2W, 230V, 470lm, 25 000h, 4000K daylight white, 360deg
LED Bulb , power input 4,2 W, 230 V, luminous flux 470 lm, neutral light (4000 K), diameter of 6 cm, lifespan 25000 h, energy label E, 1 piece in package
Buy with code ALZADAYS20AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 20 % Rabatt mit dem Code ALZADAYS20AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 2.55 €
3.19 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TslLigh22_70
4.4 12×
Tesla - LED bulb FILAMENT RETRO BULB E27, 7,2W, 230V, 806lm, 25 000h, 2700K warm white, 360deg
LED Bulb - lamp cap E27, power input 7,2 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 6 cm, lifespan 25000 h, energy label E, 1 piece in package
3.70 €
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In stock 3 pcs
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Order Code: TslLigh22_71
4.9 19×
Tesla - LED bulb miniglobe FILAMENT RETRO E14, 6W, 230V,806lm,25 000h, 4000K daylight white, 360deg,
LED Bulb - lamp cap E14, power input 6 W, 230 V, luminous flux 806 lm, neutral light (4000 K), diameter of 4,5 cm, lifespan 25000 h, energy label E, 1 piece in package
3.29 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TslLigh22_68
4.0
Nedis smart LED bulb WIFILRC10E14
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,9 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 3,7 cm, WiFi 2,4 GHz, compatible with Tuya, Nedis SmartLife, control via app in both Czech and English, lifespan 10000 h, energy label F, 1 piece in package
13.90 €
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In stock 1 pcs
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Info
Order Code: Nedis22_06
3.9 13×
IMMAX NEO LITE Smart Filament Vintage LED E27 7W warm, cool white, dimmable, WiFi
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 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, Lidl Home, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
from  9.70 €
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In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: IMMX_22_01
4.4 25×
Niceboy SmartBulb AMBIENT 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 Niceboy ION, control via app in Czech, lifespan 25000 h, energy label F, 1 piece in package
Buy with code ALZADAYS25AT 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 ALZADAYS25AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 6.97 €
9.29 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NCB21_03
4.4 25×
Niceboy SmartBulb AMBIENT E27 set 2 pcs
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 Czech, lifespan 25000 h, energy label F, 2 in package
Buy with code ALZADAYS25AT 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 ALZADAYS25AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 12.68 €
16.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NCB21_04
 
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