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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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771 Results
AlzaPower LED 8-50W, E14, 4000K, set of 2 - LED Bulb
2 variants
4.7 255×
AlzaPower LED 8-50W, E14, 4000K, set of 2
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 720 lm, neutral light (4000 K), diameter of 3,7 cm, lifespan 25000 h, energy label F, 2 in package - 800 Ft/ks
Great price 1,590 Ft
Buy
On the way > 5 pcs
Expected 12/10/2026
Order Code: APWLED-0009
AlzaPower LED 8-55W, GU10, 4000K, set of 2 - LED Bulb
2 variants
4.4 215×
AlzaPower LED 8-55W, GU10, 4000K, set of 2
LED Bulb - lamp cap GU10, power input 8 W, 230 V, luminous flux 720 lm, neutral light (4000 K), diameter of 5 cm, lifespan 25000 h, energy label F, 2 in package - 800 Ft/ks
Great price 1,590 Ft
Buy
On the way 1 pcs
Expected 08/06/2026
Order Code: APWLED-0010a
AlzaPower LED 9-60W, E27, 2700K, set of 3 - LED Bulb
4 variants
4.8 396×
AlzaPower LED 9-60W, E27, 2700K, set of 3
LED Bulb - lamp cap E27, power input 9 W, 230 V, luminous flux 820 lm, warm light (2700 K), diameter of 6 cm, lifespan 25000 h, energy label F, 3 in package - 760 Ft/ks
Great price 2,290 Ft
Buy
On the way > 5 pcs
Expected 12/10/2026
Order Code: APWLED-0001
AlzaPower LED 12-85W, E27, 2700K, set of 3 - LED Bulb
2 variants
4.9 321×
AlzaPower LED 12-85W, E27, 2700K, set of 3
LED Bulb - lamp cap E27, power input 12 W, 230 V, luminous flux 1160 lm, warm light (2700 K), diameter of 6 cm, lifespan 25000 h, energy label F, 3 in package - 860 Ft/ks
Great price 2,590 Ft
Buy
On the way > 5 pcs
Expected 12/10/2026
Order Code: APWLED-0004
AlzaPower LED 9-60W, E27, 4000K, set of 3 - LED Bulb
4 variants
4.8 396×
AlzaPower LED 9-60W, E27, 4000K, set of 3
LED Bulb - lamp cap E27, power input 9 W, 230 V, luminous flux 820 lm, neutral light (4000 K), diameter of 6 cm, lifespan 25000 h, energy label F, 3 in package - 760 Ft/ks
Great price 2,290 Ft
Buy
On the way > 5 pcs
Expected 08/06/2026
Order Code: APWLED-0002
AlzaPower LED 9-60W, E27, 6500K, set of 3 - LED Bulb
4 variants
4.8 396×
AlzaPower LED 9-60W, E27, 6500K, set of 3
LED Bulb - lamp cap E27, power input 9 W, 230 V, luminous flux 820 lm, cool light (6500 K), diameter of 6 cm, lifespan 25000 h, energy label F, 3 in package - 760 Ft/ks
Great price 2,290 Ft
Buy
On the way > 5 pcs
Expected 12/10/2026
Order Code: APWLED-0002a
EMOS Vintage G125 / E27 / 4.5 W (40 W) / 420 lm / warm white - LED Bulb
5.0 1×
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  2,600 Ft
depending on the number of items
Buy
Ordered on request
Order Code: EMOS24162
Govee Smart RGBWW 9 W-60 W, 800 lm, E27, Long Life Matter - LED Bulb
4.8 28×
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
Great price 4,990 Ft
Currently Unavailable
Order Code: Govee24018
Philips Hue White and colour Ambiance 11W 1100 E27 - LED Bulb
2 variants
4.8 158×
Philips Hue White and colour Ambiance 11W 1100 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 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, 1 piece in package
Great price 28,860 Ft
Currently Unavailable
Order Code: PHL21026
Philips Hue White Ambiance 6W E14 set 2pcs - LED Bulb
2 variants
4.9 100×
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
Discounted -10 % 22,270 Ft 24,790 Ft
Currently Unavailable
Order Code: ESO2557q2
Philips Hue White 5,5W E14 set 2pcs - LED Bulb
2 variants
4.9 16×
Philips Hue White 5,5W E14 set 2pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 5,5 W, 230 V, luminous flux 470 lm, warm light (2700 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 F, 2 in package
16,590 Ft
Currently Unavailable
Order Code: PHL19023
EMOS Smart LED bulb GoSmart A65 E27 14 W (94 W) 1 400 lm RGB dimmable Wi-Fi - LED Bulb
3 variants
4.2 133×
EMOS Smart LED bulb GoSmart A65 E27 14 W (94 W) 1 400 lm RGB dimmable Wi-Fi
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, 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
3,370 Ft
Currently Unavailable
Order Code: HM521b4
Philips Hue White 9W E27 set 2pcs - LED Bulb
4.8 181×
Philips Hue White 9W E27 set 2pcs
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, luminous flux 800 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 15000 h, energy label F, 2 in package
12,190 Ft
Currently Unavailable
Order Code: ESO521g7
Philips LED 13-100W, E27, 6500K, matt - LED Bulb
4.9 150×
Philips LED 13-100W, E27, 6500K, matt
LED Bulb , power input 12,5 W, 230 V, luminous flux 1521 lm, cool light (6500 K), diameter of 6 cm, lifespan 15000 h, energy label E, 1 piece in package
2,490 Ft
Currently Unavailable
Order Code: ESO110c3
Philips LED Classic 4.6-50 W, GU10, 2700 K, 2-pack - LED Bulb
3 variants
4.8 243×
Philips LED Classic 4.6-50 W, GU10, 2700 K, 2-pack
LED Bulb , 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, 2 in package - 2,600 Ft/pcs
5,190 Ft
Currently Unavailable
Order Code: ESO138a1
Wi-Fi BLE 60W A60 A60 E27 822-65 RGB 3CT/6 - LED Bulb
4.2 5×
Wi-Fi BLE 60W A60 A60 E27 822-65 RGB 3CT/6
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,8 W, 230 V, luminous flux 806 lm, adjustable light temperature (2200-6500 K), diameter of 6 cm, WiFi 2,4 GHz and Bluetooth, control via app in both Czech and English, lifespan 25000 h, energy label F, 3 in package
11,990 Ft
Currently Unavailable
Order Code: WiZ23014
AlzaPower LED 1.5-25W, G4, 2700K, set of 2 - LED Bulb
4.2 52×
AlzaPower LED 1.5-25W, G4, 2700K, set of 2
LED Bulb - lamp cap G4, power input 1,8 W, 12 V, luminous flux 180 lm, warm light (2700 K), diameter of 1,04 cm, lifespan 25000 h, energy label F, 2 in package - 1,200 Ft/ks
Great price 2,390 Ft
Currently Unavailable
Order Code: APWLED-0014
Tesla FILAMENT RETRO, E27, 11W, 230V, 1521lm, 25 000h, 4000K daylight white, 360°, clear - LED Bulb
2 variants
4.8 19×
Tesla FILAMENT RETRO, E27, 11W, 230V, 1521lm, 25 000h, 4000K daylight white, 360°, clear
LED Bulb , power input 11 W, 230 V, filament, luminous flux 1521 lm, neutral light (4000 K), diameter of 6 cm, lifespan 25000 h, energy label D, 1 piece in package
Discounted -18 % 1,290 Ft 1,590 Ft
Currently Unavailable
Order Code: TSL19004
Philips Hue White Ambiance 7W 550 Filament G93 E27 - LED Bulb
4.8 6×
Philips Hue White Ambiance 7W 550 Filament G93 E27
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 7 W, 230 V, filament, luminous flux 550 lm, adjustable light temperature (2200-4500 K), diameter of 9,5 cm, Bluetooth, compatible with Apple Home, Philips Hue, control via app in both Czech and English, lifespan 15000 h, energy label G, 1 piece in package
20,030 Ft
Currently Unavailable
Order Code: PHL21022
AlzaPower LED 1.8-32W, G4, 2700K, set of 2 - LED Bulb
3.8 27×
AlzaPower LED 1.8-32W, G4, 2700K, set of 2
LED Bulb - lamp cap G4, power input 1,8 W, 12 V, luminous flux 180 lm, warm light (2700 K), diameter of 1,4 cm, lifespan 25000 h, energy label F, 2 in package - 1,250 Ft/ks
Great price 2,490 Ft
Currently Unavailable
Order Code: APWLED-0014a
TESLA LED Bulb Mini-globe BULB E14, 8W, Day White - LED Bulb
4 variants
4.8 111×
TESLA LED Bulb Mini-globe BULB E14, 8W, Day White
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 900 lm, neutral light (4000 K), diameter of 4,5 cm, lifespan 25000 h, energy label E, 1 piece in package
1,590 Ft
Currently Unavailable
Order Code: TSL19012
EMOS Smart LED bulb GoSmart A60 E27 11 W (75 W) 1 050 lm RGB dimmable Zigbee - LED Bulb
3.9 14×
EMOS Smart LED bulb GoSmart A60 E27 11 W (75 W) 1 050 lm RGB dimmable Zigbee
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 11 W, 230 V, luminous flux 1050 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
4,410 Ft
Currently Unavailable
Order Code: HM521b10
MOES Smart Zigbee Bulb, E27, RGB, 9W - LED Bulb
3.7 23×
MOES Smart Zigbee Bulb, E27, RGB, 9W
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, control via app in Czech, lifespan 25000 h, energy label F, 1 piece in package
5,590 Ft
Currently Unavailable
Order Code: Moes22_21
WiZ Tunable White 50W E27 ST64 Vintage - LED Bulb
4.6 5×
WiZ Tunable White 50W E27 ST64 Vintage
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 6,7 W, 230 V, luminous flux 640 lm, adjustable light temperature (2000-5000 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
6,590 Ft
Currently Unavailable
Order Code: WiZ21022
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 Car Lightbulbs Car Bulbs AlzaPower Light Bulbs & Fluorescent Lights AlzaPower Jak vybrat žárovku
 

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