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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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863 Results
OSRAM frosted LED bulb E27 7.3W VINTAGE BALLON, warm white - LED Bulb
OSRAM frosted LED bulb E27 7.3W VINTAGE BALLON, warm white
LED Bulb - lamp cap E27, power input 7,3 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 17 cm, lifespan 15000 h, energy label E, 1 piece in package
929,-
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In stock 4 pcs at the supplier's
Order Code: osra25102
OSRAM dimmable LED filament lamp E27 4,5 W BIG GRAPE, warm white - LED Bulb
OSRAM dimmable LED filament lamp E27 4,5 W BIG GRAPE, warm white
LED Bulb - lamp cap E27, power input 4,5 W, luminous flux 806 lm, warm light (1700 K), diameter of 16,5 cm, lifespan 15000 h, energy label G, 1 piece in package
929,-
Buy
In stock 3 pcs at the supplier's
Order Code: osra25094
OSRAM dimmable LED bulb E27 4 W VINTAGE CONE, warm white - LED Bulb
OSRAM dimmable LED bulb E27 4 W VINTAGE CONE, warm white
LED Bulb - lamp cap E27, power input 4 W, luminous flux 806 lm, warm light (1800 K), lifespan 15000 h, energy label G, 1 piece in package
999,-
Buy
In stock 4 pcs at the supplier's
Order Code: osra25095
OSRAM Vintage LED bulb E27 4,8 W GOLD VINTAGE, warm white - LED Bulb
OSRAM Vintage LED bulb E27 4,8 W GOLD VINTAGE, warm white
LED Bulb - lamp cap E27, power input 4,8 W, luminous flux 806 lm, warm light (2200 K), lifespan 15000 h, energy label G, 1 piece in package
969,-
Buy
In stock 3 pcs at the supplier's
Order Code: osra25098
OSRAM dimmable LED filament lamp E27 4,8 W VINTAGE 1906, warm white - LED Bulb
OSRAM dimmable LED filament lamp E27 4,8 W VINTAGE 1906, 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
1,109,-
Buy
In stock 1 pcs at the supplier's
Order Code: osra25097
OSRAM blue balloon LED dimmable bulb E27 4,5 W VINTAGE, warm white - LED Bulb
OSRAM blue balloon LED dimmable bulb E27 4,5 W VINTAGE, warm white
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, luminous flux 806 lm, warm light (1600 K), diameter of 17 cm, lifespan 15000 h, energy label G
929,-
Buy
In stock 4 pcs at the supplier's
Order Code: osra25091
OSRAM green vintage LED bulb E27 4,5 W GLOBE, warm white - LED Bulb
OSRAM green vintage LED bulb E27 4,5 W GLOBE, warm white
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, luminous flux 806 lm, warm light (1600 K), diameter of 12,5 cm, lifespan 15000 h, energy label G, 1 piece in package
919,-
Buy
In stock 4 pcs at the supplier's
Order Code: osra25090
OSRAM dimmable LED bulb E27 4 W VINTAGE 1906, warm white - LED Bulb
OSRAM dimmable LED bulb E27 4 W VINTAGE 1906, warm white
LED Bulb - lamp cap E27, power input 4 W, luminous flux 806 lm, warm light (1800 K), lifespan 15000 h, 1 piece in package
639,-
Buy
In stock 3 pcs at the supplier's
Order Code: osra25096
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
449,-
Buy
In stock 4 pcs at the supplier's
Order Code: osra25083
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
1,039,-
Buy
In stock 4 pcs at the supplier's
Order Code: osra25063
OSRAM pink balloon LED dimmable bulb E27 4,5 W VINTAGE, warm white - LED Bulb
OSRAM pink balloon LED dimmable bulb E27 4,5 W VINTAGE, warm white
LED Bulb - lamp cap E27, power input 4,5 W, 230 V, luminous flux 806 lm, warm light (1600 K), diameter of 17 cm, lifespan 15000 h, energy label G, 1 piece in package
929,-
Buy
In stock 4 pcs at the supplier's
Order Code: osra25092
OSRAM black LED spiral bulb E27 4 W VINTAGE, warm white - LED Bulb
OSRAM black LED spiral bulb E27 4 W VINTAGE, warm white
LED Bulb , power input 4 W, luminous flux 140 lm, warm light (1800 K), lifespan 15000 h, energy label G, 1 piece in package
519,-
Buy
In stock > 5 pcs at the supplier's
Order Code: osra25026
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
4,859,-
From 112,- per month
Buy
On the way 1 pcs
Expected 22/06/2026
Order Code: PHL21028
Philips Hue White 5,5W GU10 set 2pcs - LED Bulb
4.9 17×
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  999,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHL18146
Philips Hue White Filament 7W E27 G125 - LED Bulb
4.4 5×
Philips Hue White Filament 7W E27 G125
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 550 lm (2100 K), diameter of 12,5 cm, Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 15000 h, energy label G, 1 piece in package
1,159,-
Buy
On the way 1 pcs
Expected 22/06/2026
Order Code: PHL20047
Philips Hue White and colour Ambiance 6W 810 E27 2pcs - LED Bulb
Philips Hue White and colour Ambiance 6W 810 E27 2pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6 W, 230 V, luminous flux 800 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, 2 in package
2,559,-
Buy
On the way 1 pcs
Expected 22/06/2026
Order Code: PHLS25084
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
1,299,-
Buy
On the way > 5 pcs
Expected 08/07/2026
Order Code: PHLS25075
Philips Smart Led WFB 60 W A60 E27 RGB 1PK + Remote - LED Bulb
Philips Smart Led WFB 60 W A60 E27 RGB 1PK + Remote
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 15000 h, energy label F, 1 piece in package
649,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26078
Philips Smart Led WFB 60 W A60 E27 822-65 RGB 3CT/6 - LED Bulb
Philips Smart Led WFB 60 W A60 E27 822-65 RGB 3CT/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,5 W, 230 V, luminous flux 806 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 25000 h, energy label F, 3 in package
709,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26076
Philips Smart Led WFB 40 W C37 E14 922-65 RGB 2PF/6 - LED Bulb
Philips Smart Led WFB 40 W C37 E14 922-65 RGB 2PF/6
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 7 W, 230 V, luminous flux 470 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 15000 h, energy label F, 2 in package
629,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26074
Philips Smart Led WFB 40 W C37 E14 922-65 RGB 4CT/6 - LED Bulb
Philips Smart Led WFB 40 W C37 E14 922-65 RGB 4CT/6
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 7,1 W, 230 V, luminous flux 470 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 15000 h, energy label F, 4 in package
1,229,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26081
Philips Smart Led WFB 100 W A60 E27 822-65 RGB 2PF/6 - LED Bulb
Philips Smart Led WFB 100 W A60 E27 822-65 RGB 2PF/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 1521 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 15000 h, energy label F, 2 in package
799,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26080
Philips Smart Led WFB 60 W A60 E27 RGB 2PK + Remote - LED Bulb
Philips Smart Led WFB 60 W A60 E27 RGB 2PK + Remote
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 15000 h, energy label F, 2 in package
849,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26079
Philips Smart Led WFB 40 W C37 E14 922-65 RGB 3CT/6 - LED Bulb
Philips Smart Led WFB 40 W C37 E14 922-65 RGB 3CT/6
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 7 W, 230 V, luminous flux 470 lm, WiFi 2,4 GHz and Bluetooth, control via app in Czech, lifespan 15000 h, energy label F, 3 in package
979,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: PHLS26073
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 Car Lightbulbs Car Bulbs AlzaPower Light Bulbs & Fluorescent Lights AlzaPower Jak vybrat žárovku
 

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