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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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842 Results
4.8
SMD High Performance MA90 38W/230V/E27/4000K/4350Lm/360°/A+
LED Bulb - lamp cap E27, power input 38 W, 230 V, luminous flux 4350 lm, neutral light (4000 K), diameter of 90 mm, lifespan 40000 hr(s), energy label E, 1 piece in package
37.82 €
Currently Unavailable
Order Code: PEVzar22
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
31.91 €
Currently Unavailable
Order Code: WiZ23018
5.0
Tesla - LED bulb candle E27, 4,9W, 230V, 470lm, 25 000h, 3000K warm white, 180st
LED Bulb - lamp cap E27, power input 4,9 W, 230 V, luminous flux 470 lm, warm light, diameter of 9,5 cm, lifespan 25000 h, energy label G, 1 piece in package
3.29 €
Currently Unavailable
Order Code: TslLight25018
4.9 84×
EMOS Filament candle, E14, 7 W (75 W), 1055 lm, warm white
LED Bulb - lamp cap E14, power input 7 W, 230 V, luminous flux 1055 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 25000 h, energy label D, 1 piece in package
from  3.36 €
Currently Unavailable
Order Code: EMOS24221
5.0
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  8.27 €
Currently Unavailable
Order Code: EMOS24162
RETLUX RFL 603 Filament A60 E27 5.2W WW A
LED Bulb , power input 5,2 W, 230 V, filament, luminous flux 1100 lm, warm light (3000 K), diameter of 6 cm, lifespan 25000 h, energy label A, 1 piece in package
5.39 €
Currently Unavailable
Order Code: RTLX25017
Hynek Medřický Biodynamic LED bulb Vitae 3in1 EEN
LED Bulb - lamp cap E27, 230 V, adjustable light temperature (1200-2700 K), diameter of 7 cm, lifespan 15000 h, energy label G, 1 piece in package
91.97 €
Currently Unavailable
Order Code: WSaaa4638
RETLUX RHL 220 G9 40W Oven WW
Oven Bulb - energy label G, power input 40 W, 230 V, luminous flux 460 lm, warm light (3000 K), colour Rendering Index (CRI) 80 Ra, diameter 1,3 cm, lifetime 2000 h
4.59 €
Currently Unavailable
Order Code: RTLX25016
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
15.92 €
Currently Unavailable
Order Code: EMOS25184
4.0
OSRAM SPC. T25/57, E14, 10W, 300 °C, matt - 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
2.90 €
Currently Unavailable
Order Code: osra25112
OSRAM dimmable vintage LED bulb E27 7 W EDISON, warm white
LED Bulb - lamp cap E27, power input 7 W, luminous flux 806 lm, warm light (2200 K), lifespan 15000 h, energy label F, 1 piece in package
12.41 €
Currently Unavailable
Order Code: osra25072
1.0
IMMAX NEO LED Smart Filament E14 C37 4W CCT 470 lm dimmable, WiFi, Beacon
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4 W, 230 V, filament, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 3,5 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 E, 1 piece in package
Discounted -27 % 7.88 € 10.90 €
Currently Unavailable
Order Code: IMMX25102
OSRAM 10X2, E14, 15W, 300 °C, clear - pack of 2
Oven Bulb - energy label G, power input 15 W, 230 V, Filament, luminous flux 85 lm, warm light (2700 K), diameter 2,2 cm, lifetime 1500 h, 2 pieces in the package
5.99 €
Currently Unavailable
Order Code: osra25108
RETLUX RFL 604 Filament A60 E27 4 W WW A
LED Bulb - lamp cap E27, power input 4 W, 230 V, filament, luminous flux 840 lm, warm light (3000 K), diameter of 6 cm, lifespan 6,94 h, energy label A, 1 piece in package
4.99 €
Currently Unavailable
Order Code: RTLX26009
2.19 €
Currently Unavailable
Order Code: EMOS26015
OSRAM dimmable LED filament bulb E27 11 W VINTAGE GLOBE, warm white
LED Bulb - lamp cap E27, power input 11 W, 230 V, luminous flux 806 lm, warm light (1800 K), diameter of 12,4 cm, lifespan 15000 h, energy label G, 1 piece in package
21.99 €
Currently Unavailable
Order Code: osra25066
5.0
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
15.92 €
Currently Unavailable
Order Code: EMOS25180
3.0
EMOS DECO SMOKED G125, 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 12,5 cm, lifespan 25000 h, energy label G, 1 piece in package
9.62 €
Currently Unavailable
Order Code: EMOS25188
EMOS DECO SMOKED G95, 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 9,5 cm, lifespan 25000 h, energy label G, 1 piece in package
9.20 €
Currently Unavailable
Order Code: EMOS25187
OSRAM 10XBLI1, E14, 15W, 300 °C, clear
Oven Bulb - energy label G, power input 15 W, 230 V, Filament, luminous flux 85 lm, warm light (2700 K), diameter 1,7 cm, lifetime 1000 h
2.69 €
Currently Unavailable
Order Code: osra25117
Philips Smart LED WFB 40W P45 E14 922-65 RGB 1PF/6
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,9 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 7 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, Samsung SmartThings, IFTTT, control via app in Czech, lifespan 15000 h, energy label F, 1 piece in package
14.90 €
Currently Unavailable
Order Code: PHLS26075
EMOS DECO G130SRA, 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
20.95 €
Currently Unavailable
Order Code: EMOS25183
Philips Smart LED WFB 60W A60 E27 822-65 RGB 2PF/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,5 W, 230 V, luminous flux 806 lm, adjustable light temperature (2200-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, Samsung SmartThings, IFTTT, control via app in Czech, lifespan 25000 h, energy label F, 2 in package
20.90 €
Currently Unavailable
Order Code: PHLS26077
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
20.11 €
Currently Unavailable
Order Code: EMOS25182
In the category Light Bulbs & Fluorescent Lights on Alza.sk, we currently have a total of 861 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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