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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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864 Results
4.7
Nedis LED bulb, E14, R50, 4,9 W, 470 lm, 2700 K
LED Bulb - lamp cap E14, power input 4,9 W, 230 V, luminous flux 470 lm, lifespan 15000 h, energy label F, 1 piece in package
64,-
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In stock > 20 pcs
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Order Code: Nedis24043
4.9 33×
RETLUX RLL 632 G45 E14 miniG 6W WW D
LED Bulb - lamp cap E14, power input 6 W, 230 V, luminous flux 810 lm, warm light (3000 K), lifespan 25000 h, energy label D, 1 piece in package
79,-
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In stock > 20 pcs
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Order Code: RTLX24054
5.0
Tesla GLOBE G80 VINTAGE, E27, 4, 2W, 230V, 540lm, 2400K, 360deg, gold
LED Bulb , power input 4,2 W, 230 V, filament, luminous flux 540 lm (2400 K), diameter of 8 cm, lifespan 25000 h, energy label D, 1 piece in package
Buy with code ALZADNY30 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 30% s kódem ALZADNY30. 139,-
199,-
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In stock 5 pcs
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Order Code: TslLight23_009
5.0 11×
RETLUX REL 34 LED C37 2x5W E14 WW
LED Bulb - lamp cap E14, power input 5 W, 230 V, luminous flux 430 lm, warm light, diameter of 3,7 cm, lifespan 25000 h, energy label F, 2 in package
99,-
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In stock > 20 pcs
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Order Code: RTLX17134
5.0
Nedis LED bulb, E14, G45, 2 W, 250 lm, 2700 K, retro
LED Bulb - lamp cap E14, power input 2 W, 230 V, luminous flux 250 lm, lifespan 15000 h, energy label E, 1 piece in package
79,-
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In stock 1 pcs
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Order Code: Nedis24045
5.0
EMOS Filament G125, E27, 18 W (150 W), 2452 lm, warm white
LED Bulb , power input 18 W, 230 V, filament, luminous flux 2452 lm, warm light (2700 K), diameter of 12,5 cm, lifespan 25000 h, energy label D, 1 piece in package
269,-
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In stock > 5 pcs
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Order Code: EMOS25088
5.0
Philips 40W P45 E14 2700K CL UE SRT4
LED Bulb - lamp cap E14, power input 2,3 W, 230 V, luminous flux 485 lm, warm light (2700 K), lifespan 50000 h, energy label A, 1 piece in package
199,-
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In stock 5 pcs
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Order Code: PHLS25047
4.0
OSRAM dimmable LED bulb E27 6,5 W Vintage 1906, warm white
LED Bulb , power input 6,5 W, luminous flux 725 lm, warm light (2400 K), lifespan 15000 h, energy label E, 1 piece in package
259,-
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In stock > 10 pcs
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Order Code: osra25046
4.9 33×
RETLUX RLL 634 G45 E14 miniG 6W DL D
LED Bulb - lamp cap E14, power input 6 W, 230 V, luminous flux 810 lm, cool light (6500 K), lifespan 25000 h, energy label D, 1 piece in package
59,-
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In stock > 20 pcs
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Info
Order Code: RTLX24059
4.0
IMMAX NEO LED Smart E14 4.8W RGB+CCT, dimmable, C37, Zigbee
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,8 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 3,7 cm, WiFi 2,4 GHz, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Smartlife, Nedis SmartLife, ETA SMART, Tesla Smart, Immax NEO PRO, control via app in both Czech and English, lifespan 416,67 h, energy label F, 1 piece in package
249,-
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In stock > 10 pcs
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Info
Order Code: IMMX25103
4.8 17×
RETLUX RLL 638 G45 E27 miniG 6W WW D
LED Bulb - lamp cap E27, power input 6 W, 230 V, luminous flux 810 lm, warm light (3000 K), lifespan 25000 h, energy label D, 1 piece in package
59,-
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In stock > 50 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX24061
5.0
Wi-Fi BLE G95 E27 922-65 RGB CL 1PF/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,3 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 9,5 cm, WiFi 2,4 GHz and WiFi 5 GHz, control via app in both Czech and English, lifespan 15000 h, energy label G, 1 piece in package
769,-
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In stock 3 pcs
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Info
Order Code: WiZ23019
3.0
Philips Smart LED WFB 60W G125 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, filament, luminous flux 806 lm, adjustable light temperature (2700-6500 K), diameter of 9,5 cm, WiFi 2,4 GHz, compatible with Apple Siri shortcuts, Google Home, control via app in Czech, lifespan 15000 h, energy label E, 1 piece in package
Buy with code ALZADNY20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky. 343,-
429,-
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS26009
3.5
Philips 50W GU10 CW 36D ND UE SRT4
LED Bulb - lamp cap GU10, power input 2,4 W, 230 V, luminous flux 400 lm, neutral light (4000 K), diameter of 5 cm, lifespan 50000 h, energy label A, 1 piece in package
399,-
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In stock > 5 pcs
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Order Code: PHLS25039
5.0
Philips LED 60W ST64 E27 2700K CL UE SRT4
LED Bulb , power input 4 W, 230 V, luminous flux 840 lm, warm light (2700 K), diameter of 6,4 cm, lifespan 50000 h, energy label A, 1 piece in package
209,-
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: PHLS25025
4.9 31×
RETLUX RLL 653 R50 E14 Spot 8W DL D
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 1080 lm, cool light (6500 K), lifespan 25000 h, energy label D, 1 piece in package
89,-
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX24068
5.0
Wi-Fi BLE ST64 E27 922-65 RGB CL 1PF/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,3 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 6,4 cm, WiFi 2,4 GHz and WiFi 5 GHz, control via app in both Czech and English, lifespan 15000 h, energy label G, 1 piece in package
769,-
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In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: WiZ23018
5.0
Philips 50W GU10 WH 36D ND UE SRT4
LED Bulb - lamp cap GU10, power input 2,4 W, 230 V, luminous flux 400 lm, warm light (3000 K), diameter of 5 cm, lifespan 50000 h, energy label A, 1 piece in package
399,-
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In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS25038
4.2
RETLUX RLL 601 A60 E27 bulb 7W CW D
LED Bulb - lamp cap E27, power input 7 W, 230 V, luminous flux 950 lm, neutral light (4000 K), lifespan 25000 h, energy label D, 1 piece in package
69,-
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: RTLX24031
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
89,-
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In stock 3 pcs
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Info
Order Code: TslLigh22_71
4.0
Rabalux SMD LED High Lumen PAR16 GU10 5 W 905 lm 3000 K
LED Bulb - lamp cap GU10, power input 5 W, 230 V, luminous flux 905 lm, warm light (3000 K), diameter of 5 cm, lifespan 50000 h, energy label A, 1 piece in package
99,-
Buy
In stock > 20 pcs at the supplier's
Order Code: WSaaa5745
4.4
Philips LED 60W A60 E27 2700K CL UE SRT4
LED Bulb , power input 4 W, 230 V, luminous flux 840 lm, warm light (2700 K), lifespan 50000 h, energy label A, 1 piece in package
279,-
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In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS25028
4.2
RETLUX RLL 600 A60 E27 bulb 7W WW D
LED Bulb - lamp cap E27, power input 7 W, 230 V, luminous flux 950 lm, warm light (3000 K), lifespan 25000 h, energy label D, 1 piece in package
69,-
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In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX24036
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
139,-
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TslLight25016
In the category Light Bulbs & Fluorescent Lights on Alza.cz, we currently have a total of 958 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app.
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