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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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756 Results
4.7
RETLUX RLL 611 A70 E27 bulb 15W DL D
LED Bulb - lamp cap E27, power input 15 W, 230 V, luminous flux 2050 lm, cool light (6500 K), lifespan 25000 h, energy label D, 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. 4.50 €
5.29 €
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In stock 1 pcs
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Order Code: RTLX24035
4.8
RETLUX RLL 610 A70 E27 bulb 15W WW D
LED Bulb - lamp cap E27, power input 15 W, 230 V, luminous flux 2050 lm, warm light (3000 K), diameter of 7 cm, lifespan 25000 h, energy label D, 1 piece in package
5.29 €
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In stock > 10 pcs
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Order Code: RTLX24030
3.9 14×
EMOS Smart LED bulb GoSmart A60 E27 11 W (75 W) 1 050 lm RGB dimmable Zigbee
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1050 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
10.90 €
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In stock 2 pcs
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Order Code: HM521b10
4.6 61×
EMOS LED Bulb Classic MR16 4.5W GU5.3 Neutral White
LED Bulb - lamp cap GU5,3, power input 4,5 W, 12 V, luminous flux 380 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label F, 1 piece in package
4.19 €
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In stock > 20 pcs
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Order Code: EMSD202072
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 €
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In stock 1 pcs
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Order Code: PHLS25076
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
4.10 €
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In stock > 20 pcs
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Order Code: RTLX24055
4.1 72×
RETLUX RLL 613 GU10 bulb 5W WW D
LED Bulb - lamp cap GU10, power input 5 W, 230 V, luminous flux 675 lm, warm light (3000 K), lifespan 25000 h, energy label D, 1 piece in package
2.89 €
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In stock > 20 pcs
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Order Code: RTLX24044
4.2
RETLUX RSH 103 A60, E27, 7 WATT, CCT
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, adjustable light temperature (6500-2700 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, Tuya, Lidl Home, Smartlife, Manufacturer app, control via app in both Czech and English, lifespan 15000 h, energy label E, 1 piece in package
12.90 €
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In stock 2 pcs
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Order Code: RTLX24_004
4.4 19×
Tesla LED bulb E27, 20W, 230V, 2500lm, 6500K cold white
LED Bulb - lamp cap E27, power input 20 W, 230 V, luminous flux 2500 lm, cool light (6500 K), diameter of 7,7 cm, lifespan 25000 h, energy label E, 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. 7.39 €
8.69 €
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In stock > 10 pcs
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Order Code: TslLight23_020
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
6.89 €
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In stock > 10 pcs
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Order Code: RTLX17138
4.8 212×
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, warm white, 3 pcs
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 806 lm, warm light (3000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 3 in package - from 2.91 €/ks
from  8.73 €
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In stock > 10 pcs
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Order Code: EMOS24117
Nedis LED bulb, E14, candle, 4,9 W, 470 lm, 2700 K, 3 pieces
LED Bulb - lamp cap E14, power input 4,9 W, 230 V, luminous flux 470 lm, lifespan 15000 h, energy label F, 3 in package
Amazing Deal 8.09 €
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In stock 1 pcs
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Order Code: Nedis24044
4.8 110×
TESLA LED MINIGLOBE BULB, E14, 3W, 250lm, 4000K Daylight White
LED Bulb - lamp cap E14, power input 3 W, 230 V, luminous flux 250 lm, neutral light (4000 K), diameter of 6 cm, lifespan 25000 h, energy label G, 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. 2.03 €
2.39 €
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In stock > 20 pcs
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Order Code: TslLigh22_19
4.9 75×
EMOS Filament candle, E14, 5,9 W (60 W), 806 lm, warm white
LED Bulb , power input 5,9 W, 230 V, filament, luminous flux 806 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 25000 h, energy label D, 1 piece in package
from  4.85 €
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In stock > 20 pcs
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Order Code: EMOS25086
4.4
Philips LED 60W A60 E27 2700K CL UE SRT4
LED Bulb - lamp cap E27, power input 60 W, 230 V, luminous flux 840 lm, warm light (2700 K), lifespan 50000 h, energy label A, 1 piece in package
Discounted -7 % 5.99 € 6.49 €
Buy
In stock 1 pcs
Order Code: PHLS25028
4.8 415×
EMOS Filament A60 / E27 / 10.5 W (100 W) / 1521 lm / warm white
LED Bulb - lamp cap E27, power input 10,5 W, 230 V, luminous flux 1521 lm, warm light (2700 K), diameter of 6 cm, lifespan 25000 h, energy label D, 1 piece in package
from  3.87 €
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In stock > 10 pcs
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Order Code: EMOS24155
5.0
RETLUX RLL 669 G9 6W LED STMIV. WW
LED Bulb - lamp cap G9, power input 6 W, 230 V, luminous flux 600 lm, warm light (3000 K), lifespan 15000 h, energy label F, 1 piece in package
5.29 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX24025
4.8 171×
EMOS Classic A60, E27, 4 W (40 W), 470 lm, warm white
LED Bulb - lamp cap E27, power input 4 W, 230 V, luminous flux 470 lm, warm light (2700 K), diameter of 6 cm, lifespan 30000 h, energy label E, 1 piece in package
10.90 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EMOS24072
4.0
WiZ Tunable White 60W E27 G120 Filament
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 12,5 cm, WiFi 2,4 GHz, compatible with Samsung SmartThings, IFTTT, control via app in both Czech and English, lifespan 15000 h, energy label E, 1 piece in package
16.90 €
Buy
In stock 3 pcs
Order Code: WiZ21019
4.6 55×
Tesla - LED bulb GX53, 6W, 230V, 480lm, 25 000h, 4000K daylight white, 220deg
LED Bulb - lamp cap GX53, power input 6 W, 230 V, luminous flux 480 lm, neutral light, diameter of 7,4 cm, lifespan 25000 h, energy label F, 1 piece in package
5.69 €
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In stock 1 pcs
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Info
Order Code: TslLight25016
4.0
OSRAM SPC. T25/57, E14, 10W, 300 °C, clear - pack of 2
Oven Bulb - energy label G, power input 10 W, 230 V, Filament, luminous flux 30 lm, warm light (2700 K), diameter 2,5 cm, lifetime 1000 h, 2 pieces in the package
3.29 €
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In stock 4 pcs
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Info
Order Code: osra25111
2.0
iGET HOME BS2 Smart Bulb GU10 5,5W RGB+CCT
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 5,5 W, 230 V, luminous flux 400 lm, adjustable light temperature (3000-6500 K), diameter of 5 cm, WiFi 2,4 GHz, compatible with Tuya, Smartlife, iGet Home, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
7.69 €
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: iGET25002
RETLUX RSH 105 Wi-Fi smart glow. G9 CCT
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4 W, 230 V, luminous flux 500 lm, adjustable light temperature (3000-6500 K), diameter of 2,35 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, Tuya, Manufacturer app, control via app in both Czech and English, lifespan 15000 h, energy label F, 1 piece in package
12.90 €
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX24015
4.5 53×
Niceboy SmartBulb RGB 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 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. 11.92 €
14.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NCB21_07

Light Bulbs & Fluorescent Lights

Light Bulbs & Fluorescent Lights

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