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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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869 Results
EMOS Classic A80 / E27 / 20 W (150 W) / 2452 lm / warm white - LED Bulb
3 variants
4.7 57×
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EMOS Classic A80 / E27 / 20 W (150 W) / 2452 lm / warm white
LED Bulb - lamp cap E27, power input 20 W, 230 V, luminous flux 2452 lm, warm light (2700 K), diameter of 8 cm, lifespan 30000 h, energy label E, 1 piece in package
7.19 €
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Order Code: EMOS24149
Philips LED 7,3-100W, E27, 4000K, milky, A - LED Bulb
4.4 6×
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Philips LED 7,3-100W, E27, 4000K, milky, A
LED Bulb , power input 7,3 W, 240 V, luminous flux 1535 lm, neutral light (4000 K), diameter of 6 cm, lifespan 50000 h, energy label A, 1 piece in package
10.90 €
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Order Code: PHL22057
Philips LED 100WA60 E27 2700K CL UE SRT4 - LED Bulb
4.4 3×
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Philips LED 100WA60 E27 2700K CL UE SRT4
LED Bulb , power input 7,3 W, 230 V, luminous flux 1535 lm, warm light (2700 K), diameter of 6 cm, lifespan 50000 h, 1 piece in package
11.90 €
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Order Code: PHLS25035
Nedis LED bulb, G4, 1,5 W, 12 V, 120 lm, 2700 K - LED Bulb
4.4 5×
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Nedis LED bulb, G4, 1,5 W, 12 V, 120 lm, 2700 K
LED Bulb - lamp cap G4, power input 1,5 W, 12 V, luminous flux 120 lm, warm light, lifespan 15000 h, energy label G, 1 piece in package
3.19 €
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Order Code: Nedis24055
EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / neutral white - LED Bulb
10+ variants
4.8 432×
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EMOS Filament A60 A CLASS / E27 / 3,8 W (60 W) / 806 lm / neutral white
LED Bulb - lamp cap E27, power input 3,8 W, 230 V, luminous flux 806 lm, neutral light (4000 K), diameter of 6 cm, lifespan 50000 h, energy label A, 1 piece in package
from  4.42 €
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Order Code: HM521b16
RETLUX RLL 456 G4 1,2 W LED COB 12V WW - LED Bulb
4.2 8×
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RETLUX RLL 456 G4 1,2 W LED COB 12V WW
LED Bulb - lamp cap G4, power input 1,2 W, 12 V, luminous flux 112 lm, warm light, diameter of 1,1 cm, lifespan 20000 h, energy label F, 1 piece in package
4.59 €
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In stock 3 pcs
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Order Code: RTLX17127
SMD LED Downlight GX53 8W/4000K/700lm/230V - LED Bulb
5.0 3×
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SMD LED Downlight GX53 8W/4000K/700lm/230V
LED Bulb - lamp cap GX53, power input 8 W, 230 V, luminous flux 700 lm, diameter of 2,4 cm, lifespan 25000 h, energy label F, 1 piece in package
5.09 €
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Order Code: BPVzar02
EMOS Filament A60, E27, 11 W (100 W), 1521 lm, warm white, dimmable - LED Bulb
4 variants
4.3 11×
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EMOS Filament A60, E27, 11 W (100 W), 1521 lm, warm white, dimmable
LED Bulb - lamp cap E27, power input 11 W, 230 V, filament, luminous flux 1521 lm, warm light (2700 K), diameter of 6 cm, lifespan 25000 h, energy label D, 1 piece in package
5.39 €
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Order Code: EMOS25200
Philips 40W B35 E14 2700K CL UE SRT4 - LED Bulb
4.0 4×
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Philips 40W B35 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
8.39 €
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In stock 2 pcs
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Order Code: PHLS25046
RETLUX RLL 611 A70 E27 bulb 15W DL D - LED Bulb
2 variants
4.8 9×
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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
5.39 €
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Order Code: RTLX24035
RETLUX RLL 621 R50 E14 Spot 6W WW D - LED Bulb
3 variants
4.4 20×
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RETLUX RLL 621 R50 E14 Spot 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
3.29 €
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Order Code: RTLX24046
EMOS Classic Mini Globe, E27, 4,2 W (40 W), 470 lm, neutral white, 3 pcs - LED Bulb
6 variants
4.9 158×
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EMOS Classic Mini Globe, E27, 4,2 W (40 W), 470 lm, neutral white, 3 pcs
LED Bulb - lamp cap E27, power input 4,2 W, 230 V, luminous flux 470 lm, neutral light (4000 K), diameter of 4,5 cm, lifespan 30000 h, energy label E, 3 in package
from  4.85 €
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Order Code: EMOS24128
RETLUX REL 31 LED A60 2x12W E27 WW - LED Bulb
4.6 16×
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RETLUX REL 31 LED A60 2x12W E27 WW
LED Bulb - lamp cap E27, power input 12 W, 230 V, luminous flux 1200 lm, warm light, diameter of 6 cm, lifespan 25000 h, energy label F, 2 in package
4.19 €
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In stock > 5 pcs
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Order Code: RTLX17133
SMD LED Capsule 5W/G9/230V/4000K/420Lm/300° - LED Bulb
5.0 8×
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SMD LED Capsule 5W/G9/230V/4000K/420Lm/300°
LED Bulb - lamp cap G9, power input 5 W, 230 V, luminous flux 420 lm, neutral light (4000 K), diameter of 1,6 cm, lifespan 30000 h, energy label G, 1 piece in package
4.16 €
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In stock 2 pcs
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Order Code: ZARAmb09
Niceboy SmartBulb AMBIENT E27 - LED Bulb
2 sizes
4.4 26×
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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
9.89 €
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In stock 1 pcs
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Order Code: NCB21_03
Niceboy SmartBulb AMBIENT E14 set 2 pcs - LED Bulb
2 sizes
4.0 12×
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Niceboy SmartBulb AMBIENT E14 set 2 pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 5,5 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 3,6 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 ALZADNI25 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 25% s kódom ALZADNI25. Kliknite a kód sa uplatní automaticky. 12.68 €
16.90 €
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In stock 2 pcs
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Order Code: NCB21_02
Philips Smart LED WFB 150W A80 E27 RGB - LED Bulb
4.4 5×
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Philips Smart LED WFB 150W A80 E27 RGB
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 18,5 W, 230 V, luminous flux 2452 lm, adjustable light temperature (2200-6500 K), diameter of 8,3 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
31.90 €
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In stock 5 pcs
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Order Code: PHLS26002
Philips 40W P45 E27 2700K FR UE SRT4 - LED Bulb
5.0 2×
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Philips 40W P45 E27 2700K FR UE SRT4
LED Bulb - lamp cap E27, 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
8.39 €
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In stock > 5 pcs
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Order Code: PHLS25051
RETLUX RLL 623 R50 E14 Spot 6W DL D - LED Bulb
3 variants
4.9 34×
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RETLUX RLL 623 R50 E14 Spot 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
3.29 €
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In stock 2 pcs
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Order Code: RTLX24066
EMOS Classic Mini Globe, E14, 4,2 W (40 W), 470 lm, warm white, 3 pcs - LED Bulb
6 variants
4.8 104×
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EMOS Classic Mini Globe, E14, 4,2 W (40 W), 470 lm, warm white, 3 pcs
LED Bulb - lamp cap E14, power input 4,2 W, 230 V, luminous flux 470 lm, warm light (2700 K), diameter of 4,5 cm, lifespan 30000 h, energy label E, 3 in package
Great price 4.19 €
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In stock > 20 pcs
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Order Code: EMOS24114
Tesla - LED bulb FILAMENT RETRO candle E14, 6W, 230V, 806lm, 25 000h, 2700K warm white, 360deg, clea - LED Bulb
4.8 16×
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Tesla - LED bulb FILAMENT RETRO candle E14, 6W, 230V, 806lm, 25 000h, 2700K warm white, 360deg, clea
LED Bulb - lamp cap E14, power input 6 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 25000 h, energy label E, 1 piece in package
from  3.07 €
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In stock > 10 pcs
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Order Code: TslLigh22_57
OSRAM SPC.T26/57, E14, 15W, 300 °C, clear - Oven Bulb
4.8 84×
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OSRAM SPC.T26/57, E14, 15W, 300 °C, clear
Oven Bulb - special, suitable for refrigerators, 230V, 1 bulb
1.99 €
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In stock > 20 pcs
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Order Code: EAO2226
EMOS Classic Mini Globe, E14, 4,2 W (40 W), 470 lm, neutral white - pack of 3 - LED Bulb
6 variants
4.8 104×
Watch Price/Availability
EMOS Classic Mini Globe, E14, 4,2 W (40 W), 470 lm, neutral white - pack of 3
LED Bulb - lamp cap E14, power input 4,2 W, 230 V, luminous flux 470 lm, neutral light (4000 K), diameter of 4,5 cm, lifespan 30000 h, energy label E, 3 in package
from  4.85 €
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In stock > 10 pcs
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Order Code: EMOS25087
RETLUX REL 38 LED R50 2x6W E14 W - LED Bulb
2 variants
4.8 64×
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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
4.59 €
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In stock 2 pcs
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Order Code: RTLX22_040
 
Alza Days Light Bulbs & Fluorescent Lights Sorted by Socket by Socket LED Bulbs LED bulbs Fluorescent Tube Lamps Fluorescent Tubes Efficient Lamps Efficient Smart Light Bulbs Light Sources Vintage & Retro Light Bulbs Retro Spotlight Bulbs Spotlight Light Bulb Value Packs Value Packs Car Lightbulbs Car Bulbs Oven Light Bulbs Oven AlzaPower Light Bulbs & Fluorescent Lights AlzaPower Jak vybrat žárovku
 

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In the category Light Bulbs & Fluorescent Lights on Alza.sk, we currently have a total of 898 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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