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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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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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McLED T8 LED tube 25 W, 4000 K, CRI80, 3300 lm, 130 lm/W, 1500 mm - LED Lamp
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McLED T8 LED tube 25 W, 4000 K, CRI80, 3300 lm, 130 lm/W, 1500 mm
LED Lamp - G13 socket, energy label E, power input 25 W, luminous flux 3300 lm, neutral light (4000 K), colour Rendering Index (CRI) 80 Ra, diameter 2,9 cm, service life 40000 h
  11.94 €
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In stock > 10 pcs at the supplier's
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McLED T8 LED tube 23 W, 4000 K, CRI80, 2415 lm, 105 lm/W, 1500 mm - LED Lamp
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McLED T8 LED tube 23 W, 4000 K, CRI80, 2415 lm, 105 lm/W, 1500 mm
LED Lamp - G13 socket, energy label F, power input 23 W, 230 V, luminous flux 2415 lm, neutral light (4000 K), colour Rendering Index (CRI) 80 Ra, diameter 2,9 cm, service life 40000 h
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F30W T8 BL368 - Fluorescent Light
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F30W T8 BL368
Fluorescent Light - G13 socket
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In stock 1 pcs at the supplier's
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OSRAM dimmable LED bulb E27 4 W VINTAGE GRAPE, warm white - LED Bulb
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OSRAM dimmable LED bulb E27 4 W VINTAGE GRAPE, warm white
LED Bulb - lamp cap E27, power input 4 W, luminous flux 140 lm, warm light (1800 K), lifespan 15000 h, energy label G, 1 piece in package
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Govee Smart bulb ST64 RGBWW 5 - 40 W 500 lm E27 Long Life, Matter (2 pcs) - Bulb
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Govee Smart bulb ST64 RGBWW 5 - 40 W 500 lm E27 Long Life, Matter (2 pcs)
Bulb - E27 socket
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 53.01 €
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Solight LED bulb, spot, 7W, GU10, 6000K, 595lm, white - LED Bulb
4.7 33×
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Solight LED bulb, spot, 7W, GU10, 6000K, 595lm, white
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 595 lm, cool light (6000 K), diameter of 5 cm, lifespan 35000 h, energy label E, 1 piece in package
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OSRAM SPC. T26/57, E14, 25W, 300 °C, clear - pack of 2 - Oven Bulb
4.9 34×
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OSRAM SPC. T26/57, E14, 25W, 300 °C, clear - pack of 2
Oven Bulb - energy label G, power input 25 W, 230 V, Filament, luminous flux 140 lm, warm light (2700 K), diameter 2,6 cm, lifetime 1000 h, 2 pieces in the package
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IMMAX NEO Smart LED bulb E27 11W RGB+CCT colour and white, dimmable, Zigbee 3.0 - LED Bulb
3.7 56×
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IMMAX NEO Smart LED bulb E27 11W RGB+CCT colour and white, dimmable, Zigbee 3.0
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1055 lm, adjustable light temperature (2700-6500 K), diameter of 6 cm, WiFi 2,4 GHz, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Philips Hue, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
Buy with code ALZADNI30 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 30 % s kódom ALZADNI30. Kliknite a kód sa uplatní automaticky. 7.89 €
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Philips Hue White and colour ambiance 5.7W GU10 starter kit - LED Bulb
5.0 3×
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Philips Hue White and colour ambiance 5.7W GU10 starter kit
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 5,7 W, 230 V, luminous flux 350 lm, diameter of 5 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Home, Google Home, Samsung SmartThings, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label A, 3 in package
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RETLUX RLL 317 A60 E27 PIR bulb 8W WW - LED Bulb
4.2 46×
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RETLUX RLL 317 A60 E27 PIR bulb 8W WW
LED Bulb - lamp cap E27, power input 8 W, 230 V, luminous flux 750 lm, warm light (3000 K), diameter of 6 cm, lifespan 15000 h, energy label F, 1 piece in package
Buy with code ALZADNI15 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky. 7.73 €
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In stock > 10 pcs at the supplier's
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Philips Hue White and colour Ambiance 4W E14 - LED Bulb
2 variants
4.9 72×
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Philips Hue White and colour Ambiance 4W E14
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4 W, 230 V, luminous flux 470 lm (2000 K), diameter of 3,9 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 1 piece in package
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Govee Smart RGBWW 9 W-60 W, 800 lm, E27, Long Life Matter - LED Bulb
4.8 33×
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Govee Smart RGBWW 9 W-60 W, 800 lm, E27, Long Life Matter
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 800 lm, adjustable light temperature (2700-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, GOVEE Home, control via app in English, lifespan 25000 h, energy label F, 1 piece in package
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 11.61 €
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IMMAX NEO LITE E27 9W RGB+CCT, colour and white, WiFi - pack of 3 - LED Bulb
4.0 15×
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IMMAX NEO LITE E27 9W RGB+CCT, colour and white, WiFi - pack of 3
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 and Bluetooth, compatible with Apple Siri shortcuts, Tuya, Samsung SmartThings, Lidl Home, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
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IMMAX NEO LITE E27 11W RGB+CCT, colour and white, WiFi - pack of 3 - LED Bulb
4.2 30×
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IMMAX NEO LITE E27 11W RGB+CCT, colour and white, WiFi - pack of 3
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1055 lm, adjustable light temperature (2700-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
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IMMAX NEO LITE Set 3x smart LED bulb GU10 4,8W RGB+CCT, dimmable, WiFi, Beacon, DO - LED Bulb
4.8 8×
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IMMAX NEO LITE Set 3x smart LED bulb GU10 4,8W RGB+CCT, dimmable, WiFi, Beacon, DO
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,8 W, 230 V, luminous flux 350 lm, adjustable light temperature (2700-6500 K), diameter of 5 cm, WiFi 2,4 GHz, compatible with Apple Siri shortcuts, Google Home, Tuya, Lidl Home, Smartlife, Nedis SmartLife, Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label G, 3 in package
  26.43 €
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In stock > 5 pcs at the supplier's
Order Code: IMMX24065
SMD LED Capsule 11W/G9/230V/6000K/950Lm/300° - LED Bulb
4.3 18×
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SMD LED Capsule 11W/G9/230V/6000K/950Lm/300°
LED Bulb - lamp cap G9, power input 11 W, 230 V, luminous flux 950 lm, cool light (6000 K), diameter of 1,8 cm, lifespan 30000 h, energy label G, 1 piece in package
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In stock > 20 pcs at the supplier's
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WiZ colours 50W GU10 - LED Bulb
5.0 3×
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WiZ colours 50W GU10
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,9 W, 230 V, luminous flux 400 lm, adjustable light temperature (2200-6500 K), WiFi 2,4 GHz, compatible with Samsung SmartThings, IFTTT, control via app in both Czech and English, lifespan 15000 h, energy label F, 1 piece in package
  17.16 €
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In stock 1 pcs at the supplier's
Order Code: WiZ21012
SMD LED Capsule 11W/G9/230V/4000K/920Lm/300° - LED Bulb
3.3 13×
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SMD LED Capsule 11W/G9/230V/4000K/920Lm/300°
LED Bulb - lamp cap G9, power input 11 W, 230 V, luminous flux 920 lm, neutral light (4000 K), diameter of 1,8 cm, energy label G, 1 piece in package
  4.58 €
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In stock > 20 pcs at the supplier's
Order Code: ZARAmb07
SMD LED Capsule 9W/G9/230V/4000K/740Lm/300° - LED Bulb
4.7 3×
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SMD LED Capsule 9W/G9/230V/4000K/740Lm/300°
LED Bulb - lamp cap G9, power input 9 W, 230 V, luminous flux 740 lm, neutral light (4000 K), diameter of 1,8 cm, lifespan 30000 h, energy label G, 1 piece in package
  5.84 €
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In stock > 10 pcs at the supplier's
Order Code: DIOzrc02
IMMAX NEO LITE Smart 3x LED bulb E14 6W RGB+CCT colour and white, dimmable, WiFi, P45 - LED Bulb
4.3 10×
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IMMAX NEO LITE Smart 3x LED bulb E14 6W RGB+CCT colour and white, dimmable, WiFi, P45
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 6 W, 230 V, luminous flux 470 lm, adjustable light temperature (2700-6500 K), diameter of 4,5 cm, WiFi 2,4 GHz, compatible with Apple Siri shortcuts, Tuya, Lidl Home, Immax NEO PRO, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
  from  19.99 €
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In stock > 10 pcs at the supplier's
Order Code: IMXX21388
Nedis LED bulb, G9, 4 W, 400 lm, 2700 K - LED Bulb
4.0 8×
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Nedis LED bulb, G9, 4 W, 400 lm, 2700 K
LED Bulb - lamp cap G9, power input 4 W, 230 V, luminous flux 400 lm, warm light, lifespan 15000 h, energy label F, 1 piece in package
  5.29 €
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In stock > 10 pcs at the supplier's
Order Code: Nedis24053
SMD LED Spotlight MR11 2.5W/GU4/12V AC-DC/4000K/210Lm/30° - LED Bulb
3.9 10×
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SMD LED Spotlight MR11 2.5W/GU4/12V AC-DC/4000K/210Lm/30°
LED Bulb - lamp cap GU4, power input 2,5 W, 12 V, luminous flux 210 lm, neutral light (4000 K), diameter of 3,5 cm, lifespan 30000 h, energy label F, 1 piece in package
  5.42 €
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In stock > 10 pcs at the supplier's
Order Code: ZARAmb17
SMD LED Smart Light-Sense A60 12W/E27/230V/4000K/1070Lm/230°/darkness and motion sensor - LED Bulb
3.6 11×
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SMD LED Smart Light-Sense A60 12W/E27/230V/4000K/1070Lm/230°/darkness and motion sensor
LED Bulb , power input 12 W, 230 V, luminous flux 1070 lm, neutral light (4000 K), diameter of 6 cm, lifespan 30000 h, energy label F, 1 piece in package
  13.82 €
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In stock > 10 pcs at the supplier's
Order Code: ZARAmb15
SMD LED Capsule 7W/G9/230V/4000K/590Lm/300° - LED Bulb
3.9 7×
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SMD LED Capsule 7W/G9/230V/4000K/590Lm/300°
LED Bulb - lamp cap G9, power input 7 W, 230 V, luminous flux 590 lm, neutral light (4000 K), diameter of 1,6 cm, lifespan 30000 h, energy label G, 1 piece in package
  6.29 €
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In stock > 10 pcs at the supplier's
Order Code: ZARmb09
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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