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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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755 Results
TP-Link Tapo L430C Smart E14 (4-pack) - LED Bulb
3 sizes
4.7 28×
TP-Link Tapo L430C Smart E14 (4-pack)
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,8 W, luminous flux 470 lm (2500 K), diameter of 3,8 cm, WiFi 2,4 GHz, compatible with Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label F, 4 in package
54.90 €
Buy
In stock > 5 pcs
Order Code: TP25040
Nedis LED bulb, GU10, PAR16, 1,9 W, 145 lm, 2700 K - LED Bulb
5.0 5×
Nedis LED bulb, GU10, PAR16, 1,9 W, 145 lm, 2700 K
LED Bulb - lamp cap GU10, power input 1,9 W, 230 V, luminous flux 145 lm, lifespan 15000 h, energy label F, 1 piece in package
3.79 €
Buy
In stock > 20 pcs
Order Code: Nedis24049
Nedis LED bulb, E14, G45, 4,5 W, 470 lm, 2700 K, retro - LED Bulb
4.9 14×
Nedis LED bulb, E14, G45, 4,5 W, 470 lm, 2700 K, retro
LED Bulb - lamp cap E14, power input 4,5 W, 230 V, luminous flux 470 lm, lifespan 15000 h, energy label F, 1 piece in package
4.39 €
Buy
In stock > 10 pcs
Order Code: Nedis24042
AlzaPower LED 8-75W, E27, 2500K, Amber Filament, set of 2 - LED Bulb
4.9 25×
AlzaPower LED 8-75W, E27, 2500K, Amber Filament, set of 2
LED Bulb - lamp cap E27, power input 8 W, 230 V, luminous flux 1055 lm (2500 K), diameter of 6 cm, lifespan 25000 h, energy label E, 2 in package - 2.85 €/ks
Buy with code ALZADAYS30DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 30 % Rabatt mit dem Code ALZADAYS30DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 3.98 €
Great price 5.69 €
Buy
In stock > 10 pcs
Order Code: APWLED-0016
Nedis Wi-Fi Smart LED Bulb E27 WIFILRT10A60 - LED Bulb
5.0 2×
Nedis Wi-Fi Smart LED Bulb E27 WIFILRT10A60
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 4,9 W, 230 V, luminous flux 360 lm, adjustable light temperature (1800-6500 K), diameter of 6 cm, WiFi 2,4 GHz, compatible with Tuya, Nedis SmartLife, control via app in both Czech and English, lifespan 10000 h, energy label G, 1 piece in package
14.90 €
Buy
In stock > 10 pcs
Order Code: NDS22_01
EMOS Smart LED bulb GoSmart A60 E27 9 W (60 W) 806 lm RGB dimmable Zigbee - LED Bulb
4.4 13×
EMOS Smart LED bulb GoSmart A60 E27 9 W (60 W) 806 lm RGB dimmable Zigbee
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 Tuya, Lidl Home, EMOS GoSmart, control via app in both Czech and English, lifespan 20000 h, energy label F, 1 piece in package
from  9.81 €
Buy
In stock > 10 pcs
Order Code: HM521b9
AlzaPower LED 18-115W, E27, G120, 2700K, 1 pc - LED Bulb
4.7 39×
AlzaPower LED 18-115W, E27, G120, 2700K, 1 pc
LED Bulb - lamp cap E27, power input 18 W, 230 V, luminous flux 1820 lm, warm light (2700 K), diameter of 12 cm, lifespan 25000 h, energy label F, 1 piece in package
Buy with code ALZADAYS30DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 30 % Rabatt mit dem Code ALZADAYS30DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 4.26 €
Great price 6.09 €
Buy
In stock > 10 pcs
Order Code: APWLED-0007c
EMOS Classic candle, E14, 2,5 W (32 W), 350 lm, warm white - LED Bulb
9 variants
4.9 115×
EMOS Classic candle, E14, 2,5 W (32 W), 350 lm, warm white
LED Bulb - lamp cap E14, power input 2,5 W, 230 V, luminous flux 350 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 30000 h, energy label D, 1 piece in package
from  3.24 €
Buy
In stock > 20 pcs
Order Code: EMOS24078
Philips Hue White Ambiance 8,1W 1100 E27 2pcs - LED Bulb
4.5 2×
Philips Hue White Ambiance 8,1W 1100 E27 2pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,1 W, 230 V, luminous flux 1100 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
67.90 €
Buy
In stock > 5 pcs
Order Code: PHLS25082
AlzaPower LED 8-50W, E14, P45, 2700K, set of 2 - LED Bulb
4.6 93×
AlzaPower LED 8-50W, E14, P45, 2700K, set of 2
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 720 lm, warm light (2700 K), diameter of 4,5 cm, lifespan 25000 h, energy label F, 2 in package - 2.25 €/ks
Great price 4.49 €
Buy
In stock > 20 pcs
Order Code: APWLED-0011
EMOS Filament A70 E27 18 W (150 W) 2452 lm, warm white - LED Bulb
2 variants
4.3 85×
EMOS Filament A70 E27 18 W (150 W) 2452 lm, warm white
LED Bulb - lamp cap E27, power input 18 W, 230 V, luminous flux 2452 lm, warm light (2700 K), diameter of 7 cm, lifespan 25000 h, energy label D, 1 piece in package
from  7.47 €
Buy
In stock > 10 pcs
Order Code: EMOS24199
Tesla - LED bulb BULB E27, 8.5W, 230V, 806lm, 25 000h, 4000K daylight white, 220pc 5pcs in pack - LED Bulb
10+ variants
4.8 212×
Tesla - LED bulb BULB E27, 8.5W, 230V, 806lm, 25 000h, 4000K daylight white, 220pc 5pcs in pack
LED Bulb - lamp cap E27, power input 8,5 W, luminous flux 806 lm, neutral light (4000 K), energy label F
Buy with code ALZADAYS15DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 15 % Rabatt mit dem Code ALZADAYS15DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 6.69 €
7.87 €
Buy
In stock > 10 pcs
Order Code: TslLigh22_56
Philips LED Candle 2,8-25W, E14, 2700K, Milky - LED Bulb
4.8 22×
Philips LED Candle 2,8-25W, E14, 2700K, Milky
LED Bulb - lamp cap E14, power input 2,8 W, 230 V, luminous flux 250 lm, warm light (2700 K), diameter of 3,6 cm, lifespan 15000 h, energy label F, 1 piece in package
7.19 €
Buy
In stock > 5 pcs
Order Code: PHL22001
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
154.90 €
Buy
In stock > 5 pcs
Order Code: PHL21028
EMOS LED Bulb Classic MR16 4.5W GU5.3 Neutral White - LED Bulb
4.6 61×
EMOS LED Bulb Classic MR16 4.5W GU5.3 Neutral White
LED Bulb - lamp cap GU5,3, power input 4,5 W, 12 V, luminous flux 380 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label F, 1 piece in package
4.89 €
Buy
In stock > 20 pcs
Order Code: EMSD202072
AQARA LED Bulb T2 GU10, RGB CCT (LB-L03D) - LED Bulb
5.0 5×
AQARA LED Bulb T2 GU10, RGB CCT (LB-L03D)
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,9 W, 230 V, luminous flux 450 lm, adjustable light temperature (2000-9000 K), diameter of 5 cm, Bluetooth, compatible with Aqara Home, Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label F, 1 piece in package
23.99 €
Buy
In stock 3 pcs
Order Code: Aqara25008
AlzaPower LED 18-120W, E27, 2700K, set of 2 - LED Bulb
4.7 111×
AlzaPower LED 18-120W, E27, 2700K, set of 2
LED Bulb - lamp cap E27, power input 18 W, 230 V, luminous flux 1820 lm, warm light (2700 K), diameter of 7 cm, lifespan 25000 h, energy label F, 2 in package - 4.05 €/ks
Great price 8.09 €
Buy
In stock > 10 pcs
Order Code: APWLED-0007
Philips Hue White Ambiance 8W 1100 E27 starter kit - LED Bulb
2 colors
4.8 24×
Philips Hue White Ambiance 8W 1100 E27 starter kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8 W, 230 V, luminous flux 1100 lm, adjustable light temperature (2200-6500 K), diameter of 6 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
107.90 €
Buy
In stock > 5 pcs
Order Code: PHL21016
IMMAX NEO LITE E14 6W RGB+CCT, colour and white WiFi - pack of 3 - LED Bulb
4.3 51×
IMMAX NEO LITE E14 6W RGB+CCT, colour and white WiFi - pack of 3
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 3,7 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 - from 6.57 €/pcs
from  19.71 €
Buy
In stock > 5 pcs
Order Code: IMXX21368
Tesla LED Bulb GU5, 4W - LED Bulb
4.8 84×
Tesla LED Bulb GU5, 4W
LED Bulb - lamp cap GU5,3, power input 4 W, 12 V, luminous flux 350 lm, neutral light (4000 K), diameter of 5 cm, lifespan 25000 h, energy label F, 1 piece in package
5.38 €
Buy
In stock > 10 pcs
Order Code: TSL19096
Philips LED Classic drop 2.2-25W, E27, Matt, 2700K - LED Bulb
4.7 54×
Philips LED Classic drop 2.2-25W, E27, Matt, 2700K
LED Bulb - lamp cap E27, power input 2,2 W, 230 V, luminous flux 250 lm, warm light (2700 K), diameter of 4,5 cm, lifespan 15000 h, energy label E, 1 piece in package
7.89 €
Buy
In stock > 10 pcs
Order Code: ESO1A033
TESLA Mini BULB 3W E14 - LED Bulb
4 variants
4.8 110×
TESLA Mini BULB 3W E14
LED Bulb - lamp cap E14, power input 3 W, 230 V, luminous flux 250 lm, warm light (3000 K), diameter of 6 cm, lifespan 25000 h, energy label G, 1 piece in package
2.59 €
Buy
In stock > 20 pcs
Order Code: EN405m1
Philips Hue White Ambiance 8,1W 1100 E27 - LED Bulb
5.0 1×
Philips Hue White Ambiance 8,1W 1100 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,1 W, 230 V, luminous flux 1100 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, 1 piece in package
41.90 €
Buy
In stock > 5 pcs
Order Code: PHLS25081
AlzaPower LED 6-50W, E14, 2700K, Filament, set of 2 - LED Bulb
4.6 134×
AlzaPower LED 6-50W, E14, 2700K, Filament, set of 2
LED Bulb - lamp cap E14, power input 6 W, luminous flux 750 lm, warm light (2700 K), diameter of 3,5 cm, lifespan 25000 h, energy label E, 2 in package - from 2.03 €/ks
Buy with code ALZADAYS20DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 20 % Rabatt mit dem Code ALZADAYS20DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 3.59 €
Great price from  4.05 €
Buy
In stock > 20 pcs
Order Code: APWLED-0013

Light Bulbs & Fluorescent Lights

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 AlzaPower Light Bulbs & Fluorescent Lights AlzaPower Jak vybrat žárovku
 

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