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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
Nedis smart LED bulb WIFILRF10A60 - LED Bulb
4.6 11×
Nedis smart LED bulb WIFILRF10A60
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, luminous flux 806 lm, adjustable light temperature (1800-3000 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 E, 1 piece in package
Great price 11.90 €
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In stock 5 pcs
Order Code: Nedis22_11
AQARA LED Bulb T2 E27, RGB CCT (LB-L02D) - LED Bulb
5.0 13×
AQARA LED Bulb T2 E27, RGB CCT (LB-L02D)
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 10,5 W, 230 V, luminous flux 1100 lm, adjustable light temperature (2000-9000 K), diameter of 6 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
24.99 €
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In stock > 5 pcs
Order Code: Aqara25006
Philips LED 4-60W, E27, 4000K, A - LED Bulb
4.6 22×
Philips LED 4-60W, E27, 4000K, A
LED Bulb , power input 4 W, luminous flux 840 lm, neutral light (4000 K), 1 piece in package
Buy with code ALZADAYS50DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 50 % Rabatt mit dem Code ALZADAYS50DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 4.90 €
9.79 €
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In stock > 10 pcs
Order Code: PHL22006
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2 - Kit
3 variants
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2
Kit - LED bulb - smart, energy label D, power input 6W, 230 V, luminous flux 800 lm, (1000 K), colour Rendering Index (CRI) 80 Ra, Bluetooth, Compatible with Apple Home, Google Home, Philips Hue, applications in English and Czech, lifetime 25000 h, 4 pieces in a pack + Smart Wireless Controller, 1× CR2032 battery, Compatible with Amazon Alexa and Apple Homekit
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. 107.87 €
Amazing Deal 126.90 €
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In stock > 5 pcs
Order Code: PHLS25080Bbun
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2 - Kit
3 variants
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2
Kit - LED bulb - smart, energy label D, power input 6W, 230 V, luminous flux 800 lm, (1000 K), colour Rendering Index (CRI) 80 Ra, Bluetooth, Compatible with Apple Home, Google Home, Philips Hue, applications in English and Czech, lifetime 25000 h, 4 pieces in a pack + Smart Wireless Controller, 1× CR2032 battery, Compatible with Amazon Alexa and Apple Homekit
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. 194.57 €
New arrival 228.90 €
Buy
In stock > 5 pcs
Order Code: PHLS25085Bbun
Philips Hue White and colour Ambiance 9W 1100 E27 small promo starter kit + Philips Hue Tap Dial Swi - LED Bulb
5 colors
4.9 48×
Philips Hue White and colour Ambiance 9W 1100 E27 small promo starter kit + Philips Hue Tap Dial Swi
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 1055 lm, diameter of 7,5 cm, Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label F, 2 in package
Discounted -1 % 189.90 € 192.90 €
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In stock > 5 pcs
Order Code: PHL23018set
WiZ Tunable White 60W E27 G95 Filament - LED Bulb
3.3 3×
WiZ Tunable White 60W E27 G95 Filament
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,7 W, 230 V, luminous flux 806 lm, adjustable light temperature (2700-6500 K), WiFi 2,4 GHz, compatible with Samsung SmartThings, IFTTT, control via app in both Czech and English, lifespan 15000 h, energy label E, 1 piece in package
15.90 €
Buy
In stock 2 pcs
Order Code: WiZ21018
Philips Hue White Ambiance 6W E14 set 2pcs - LED Bulb
2 variants
4.9 99×
Philips Hue White Ambiance 6W E14 set 2pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 6 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 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, 2 in package
52.90 €
Buy
In stock > 5 pcs
Order Code: ESO2557q2
Philips Hue White and colour Ambiance 9W 800 E27 4pcs - LED Bulb
2 variants
4.8 157×
Philips Hue White and colour Ambiance 9W 800 E27 4pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 800 lm, adjustable light temperature (2000-6500 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, 4 in package
161.90 €
Buy
In stock > 5 pcs
Order Code: PHL21025
Philips Hue White 9.5W 1100 E27 starter kit - LED Bulb
2 colors
4.9 22×
Philips Hue White 9.5W 1100 E27 starter kit
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9,5 W, 230 V, luminous flux 1100 lm, warm light (2700 K), diameter of 6,1 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
Great price 82.90 €
Buy
In stock > 5 pcs
Order Code: PHL21010
Philips LED Classic 3.5-35W spot, GU10, 4000K - LED Bulb
4 variants
4.8 239×
Philips LED Classic 3.5-35W spot, GU10, 4000K
LED Bulb - lamp cap GU10, power input 3,5 W, 230 V, luminous flux 275 lm, neutral light (4000 K), diameter of 5 cm, lifespan 15000 h, energy label F, 1 piece in package
Great price 4.19 €
Buy
In stock > 20 pcs
Order Code: ESO125b0f
Philips LED Classic spot 4.6-50W, GU10, 2700K, set 6ks - LED Bulb
4 variants
4.8 239×
Philips LED Classic spot 4.6-50W, GU10, 2700K, set 6ks
LED Bulb - lamp cap GU10, power input 4,6 W, 230 V, luminous flux 355 lm, warm light (2700 K), diameter of 5 cm, lifespan 15000 h, energy label F, 6 pc(s) in package - 3.48 €/pcs
20.90 €
Buy
In stock > 10 pcs
Order Code: ESO125b7
Yeelight Smart LED Bulb W4 Lite(Multicolour) - 4 pack - LED Bulb
2 sizes
3.9 52×
Yeelight Smart LED Bulb W4 Lite(Multicolour) - 4 pack
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 Apple Home, Google Home, Samsung SmartThings, control via app in English, lifespan 25000 h, energy label F, 4 in package
34.90 €
Buy
In stock > 5 pcs
Order Code: YeeLa57
TP-Link Tapo L510E, Smart WiFi bulb - LED Bulb
4.6 79×
TP-Link Tapo L510E, Smart WiFi bulb
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 60 W, 230 V, luminous flux 806 lm, warm light, diameter of 6 cm, WiFi 2,4 GHz, compatible with Manufacturer app, lifespan 15000 h, energy label F, 1 piece in package
9.69 €
Buy
In stock > 10 pcs
Order Code: TpLNk2020L510E
EMOS GoSmart A65 E27 14 W (94 W) 1400 lm RGB dimmable Zigbee - LED Bulb
4.1 43×
EMOS GoSmart A65 E27 14 W (94 W) 1400 lm RGB dimmable Zigbee
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 14 W, 230 V, luminous flux 1400 lm, adjustable light temperature (2700-6500 K), diameter of 6,5 cm, WiFi 2,4 GHz and WiFi 5 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
Great price 11.90 €
Buy
In stock > 10 pcs
Order Code: HM521b11
WiZ colours 60W E27 A60 - LED Bulb
4.8 21×
WiZ colours 60W E27 A60
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8 W, 230 V, luminous flux 806 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 25000 h, energy label F, 1 piece in package
12.90 €
Buy
In stock > 10 pcs
Order Code: WiZ21004
TP-Link Tapo L530E, Smart WiFi bulb full colour (pack of 2) - LED Bulb
4.5 52×
TP-Link Tapo L530E, Smart WiFi bulb full colour (pack of 2)
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,7 W, 230 V, luminous flux 806 lm, diameter of 6 cm, WiFi 2,4 GHz, compatible with Manufacturer app, energy label F, 2 in package
20.90 €
Buy
In stock > 10 pcs
Order Code: TpLNk21t54
Philips LED 4.7-50W, GU10 2700K, 3pcs - LED Bulb
4.8 100×
Philips LED 4.7-50W, GU10 2700K, 3pcs
LED Bulb - lamp cap GU10, power input 4,7 W, 230 V, luminous flux 345 lm, warm light (2700 K), diameter of 5 cm, lifespan 15000 h, energy label F, 3 in package - from 3 €/pcs
from  8.99 €
Buy
In stock > 10 pcs
Order Code: PHL19088
Philips LED 8-60W, E27, 2700K, 3 pcs - LED Bulb
2 variants
4.8 207×
Philips LED 8-60W, E27, 2700K, 3 pcs
LED Bulb - lamp cap E27, power input 8 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 6 cm, lifespan 15000 h, energy label F, 3 in package - from 1.72 €/pcs
from  5.17 €
Buy
In stock > 10 pcs
Order Code: PHL19080
IMMAX NEO Smart LED bulb E27 11W RGB+CCT colour and white, dimmable, Zigbee 3.0 - LED Bulb
3.8 55×
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
10.90 €
Buy
In stock > 5 pcs
Order Code: IMXX21379
IMMAX NEO LITE Smart set 3x LED bulb G9 4W CCT, dimmable, WiFi, TUYA - LED Bulb
5.0 3×
IMMAX NEO LITE Smart set 3x LED bulb G9 4W CCT, dimmable, WiFi, TUYA
LED Bulb - smart, lamp cap G9 - lamp cap G9, power input 4 W, 230 V, luminous flux 400 lm, adjustable light temperature (2700-6500 K), diameter of 1,8 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 E, 3 in package - 9.97 €/ks
29.90 €
Buy
In stock > 5 pcs
Order Code: IMMX23_28
Philips LED candle 7-60W, E14, Matte, 2700K - LED Bulb
4.8 122×
Philips LED candle 7-60W, E14, Matte, 2700K
LED Bulb - lamp cap E14, power input 7 W, 230 V, luminous flux 806 lm, warm light (2700 K), diameter of 3,8 cm, lifespan 15000 h, energy label E, 1 piece in package
from  5.25 €
Buy
In stock > 10 pcs
Order Code: ESO1A028
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue GO v2 - Kit
3 variants
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue GO v2
Kit - LED bulb - smart, energy label D, power input 6W, 230 V, luminous flux 800 lm, (1000 K), colour Rendering Index (CRI) 80 Ra, Bluetooth, Compatible with Apple Home, Google Home, Philips Hue, applications in English and Czech, lifetime 25000 h, 4 pieces in a pack + Table lamp - LED, modern style, to the bedroom, into the living room, in the study, white colour, with a dimmer, on the bedside table, Light, chromaticity 6500 K, mobile app control, the possibility of adjusting the colour of the light, SMART, dimensions 7.9 × 15 × 15 cm (H×W×D)
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. 253.22 €
New arrival 297.90 €
Buy
In stock > 5 pcs
Order Code: PHLS25085Abun
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue GO v2 - Kit
3 variants
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue GO v2
Kit - LED bulb - smart, energy label D, power input 6W, 230 V, luminous flux 800 lm, (1000 K), colour Rendering Index (CRI) 80 Ra, Bluetooth, Compatible with Apple Home, Google Home, Philips Hue, applications in English and Czech, lifetime 25000 h, 4 pieces in a pack + Table lamp - LED, modern style, to the bedroom, into the living room, in the study, white colour, with a dimmer, on the bedside table, Light, chromaticity 6500 K, mobile app control, the possibility of adjusting the colour of the light, SMART, dimensions 7.9 × 15 × 15 cm (H×W×D)
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. 166.52 €
New arrival 195.90 €
Buy
In stock > 5 pcs
Order Code: PHLS25080Abun
 

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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