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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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859 Results
RETLUX RLL 317 A60 E27 PIR bulb 8W WW - LED Bulb
4.2 46×
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
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EMOS Classic MR16 A CLASS/ GU10 / 3 W (40 W) / 535 lm / neutral white - LED Bulb
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4.8 231×
EMOS Classic MR16 A CLASS/ GU10 / 3 W (40 W) / 535 lm / neutral white
LED Bulb - lamp cap GU10, power input 3 W, 230 V, luminous flux 535 lm, neutral light (4000 K), diameter of 5 cm, lifespan 50000 h, energy label A, 1 piece in package
Amazing Deal 79,- Save 20,-
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Philips Hue White Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2 - Smart Lighting Set
3 variants
Philips Hue White Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2
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3,148,-
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Order Code: PHLS25080Bbun
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2 - Smart Lighting Set
3 variants
Philips Hue White and colour Ambiance 6W 810 E27 4pcs + Hue dimmer switch V2
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5,698,-
From 135,- per month
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Order Code: PHLS25085Bbun
Philips Hue White and colour Ambiance 9W 1100 E27 small promo starter kit + Philips Hue Motion Senso - LED Bulb
5 colors
4.9 48×
Philips Hue White and colour Ambiance 9W 1100 E27 small promo starter kit + Philips Hue Motion Senso
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 9 W, 230 V, filament, luminous flux 1100 lm, adjustable light temperature, diameter of 6 cm, Bluetooth, compatible with Apple Home, Google Home, Samsung SmartThings, IFTTT, Philips Hue, energy label F
4,739,-
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WiZ colours 40W E14 C37 - LED Bulb
4.7 27×
WiZ colours 40W E14 C37
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,8 W, 230 V, luminous flux 470 lm, adjustable light temperature (2200-6500 K), diameter of 3,9 cm, 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
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349,-
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Order Code: WiZ21009
RETLUX RLL 420 GU5.3 spot 7W 12V WW - LED Bulb
4.5 25×
RETLUX RLL 420 GU5.3 spot 7W 12V WW
LED Bulb - lamp cap GU5,3, power input 7 W, 12 V, luminous flux 660 lm, warm light, diameter of 5 cm, lifespan 25000 h, energy label F, 1 piece in package
129,-
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Order Code: RTLX17119
Philips Hue White and colour ambiance 4.2W GU10 set 2pcs - LED Bulb
2 variants
4.7 48×
Philips Hue White and colour ambiance 4.2W GU10 set 2pcs
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 4,3 W, 230 V, luminous flux 400 lm, adjustable light temperature (2000-6500 K), diameter of 5 cm, Bluetooth, compatible with Apple Home, Google Home, Philips Hue, control via app in both Czech and English, lifespan 25000 h, energy label G, 2 in package
2,314,-
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Order Code: PHL19063
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, neutral white, 3 pcs - LED Bulb
8 variants
4.8 231×
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, neutral white, 3 pcs
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 806 lm, neutral light (4000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 3 in package - 76 Kč/ks
229,-
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Order Code: EMOS24218
RETLUX RLL 662 A80 E27 bulb 20W WW D - LED Bulb
4.7 23×
RETLUX RLL 662 A80 E27 bulb 20W WW D
LED Bulb - lamp cap E27, power input 20 W, 230 V, luminous flux 2700 lm, warm light (3000 K), diameter of 8 cm, lifespan 25000 h, energy label D, 1 piece in package
Buy at the price for both existing and new AlzaPlus+ members 127,-
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Order Code: RTLX24040
TP-Link Tapo L535E - LED Bulb
4.5 60×
TP-Link Tapo L535E
LED Bulb - smart, lamp cap E27 - lamp cap E27, power input 8,6 W, 230 V, luminous flux 1055 lm (2500 K), diameter of 6 cm, WiFi 2,4 GHz, compatible with Apple Home, Manufacturer app, control via app in both Czech and English, lifespan 25000 h, energy label E, 1 piece in package
579,-
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Order Code: TP24086
RETLUX RLL 446 T120 E27 bulb 40W WW - LED Bulb
4.7 25×
RETLUX RLL 446 T120 E27 bulb 40W WW
LED Bulb - lamp cap E27, power input 40 W, 230 V, luminous flux 4300 lm, warm light, diameter of 12 cm, lifespan 25000 h, energy label F, 1 piece in package
Buy at the price for both existing and new AlzaPlus+ members 254,-
299,-
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In stock > 10 pcs
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Order Code: RTLX17124
Tesla LED bulb E27, 20W, 230V, 2500lm, 6500K cold white - LED Bulb
2 variants
4.4 20×
Tesla LED bulb E27, 20W, 230V, 2500lm, 6500K cold white
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Buy at the price for both existing and new AlzaPlus+ members 159,-
212,-
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Order Code: TslLight23_020
Wi-Fi BLE 50W GU10 922-65 RGB 3CT/6 - LED Bulb
4.8 4×
Wi-Fi BLE 50W GU10 922-65 RGB 3CT/6
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 5 W, 230 V, luminous flux 400 lm, adjustable light temperature (2200-6500 K), diameter of 5 cm, WiFi 2,4 GHz and WiFi 5 GHz, control via app in both Czech and English, lifespan 15000 h, energy label F, 3 in package
Buy at the price for both existing and new AlzaPlus+ members 685,-
979,-
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Order Code: WiZ23020
RETLUX REL 33 LED A60 4x12W E27 WW - LED Bulb
4.5 36×
RETLUX REL 33 LED A60 4x12W E27 WW
LED Bulb - lamp cap E27, power input 12 W, 230 V, luminous flux 1200 lm, warm light (3000 K), diameter of 6 cm, lifespan 25000 h, energy label F, 4 in package
169,-
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Order Code: RTLX22_039
TP-Link Tapo L630, smart, GU10, WiFI, colour - LED Bulb
4.8 54×
TP-Link Tapo L630, smart, GU10, WiFI, colour
LED Bulb - smart, lamp cap GU10 - lamp cap GU10, power input 3,7 W, 230 V, luminous flux 350 lm, adjustable light temperature (2200-6500 K), diameter of 5 cm, WiFi 2,4 GHz, compatible with Manufacturer app, control via app in both Czech and English, lifespan 15000 h, energy label E, 1 piece in package
289,-
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In stock > 10 pcs
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Order Code: TP22_32
OSRAM 20X1, G9, 25W, 66725 OVEN, 300 °C, clear - Oven Bulb
4.7 66×
OSRAM 20X1, G9, 25W, 66725 OVEN, 300 °C, clear
Oven Bulb - G9 socket
59,-
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In stock > 50 pcs
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Order Code: EDd21sy1
Govee Smart RGBWW 5W-50W, 450 lm, E14, Long Life Matter, 2 pcs - LED Bulb
5.0 3×
Govee Smart RGBWW 5W-50W, 450 lm, E14, Long Life Matter, 2 pcs
LED Bulb - smart, lamp cap E14 - lamp cap E14, power input 4,8 W, 230 V, luminous flux 450 lm (2700 K), diameter of 3,8 cm, WiFi 2,4 GHz and Bluetooth, compatible with Apple Siri shortcuts, Google Home, Samsung SmartThings, GOVEE Home, control via app in English, lifespan 25000 h, energy label F, 2 in package - 325 Kč/ks
649,-
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In stock > 5 pcs
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Info
Order Code: Govee25012
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, warm white, 3 pcs - LED Bulb
8 variants
4.8 231×
EMOS Classic MR16, GU10, 7 W (60 W), 806 lm, warm white, 3 pcs
LED Bulb - lamp cap GU10, power input 7 W, 230 V, luminous flux 806 lm, warm light (3000 K), diameter of 5 cm, lifespan 30000 h, energy label E, 3 in package - from 69 Kč/ks
from  206,-
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In stock 1 pcs
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Info
Order Code: EMOS24117
RETLUX REL 39 LED R50 4x6W E14 WW - LED Bulb
2 variants
4.7 63×
RETLUX REL 39 LED R50 4x6W E14 WW
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, 4 in package
Buy at the price for both existing and new AlzaPlus+ members 144,-
169,-
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX17138
TP-Link Tapo L530E, Smart WiFi bulb full colour (pack of 2) - LED Bulb
4.5 53×
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
579,-
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In stock > 10 pcs
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Info
Order Code: TpLNk21t54
RETLUX RLL 652 R50 E14 Spot 8W CW D - LED Bulb
3 variants
4.9 33×
RETLUX RLL 652 R50 E14 Spot 8W CW D
LED Bulb - lamp cap E14, power input 8 W, 230 V, luminous flux 1080 lm, neutral light (4000 K), lifespan 25000 h, energy label D, 1 piece in package
89,-
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In stock > 20 pcs
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Info
Order Code: RTLX24067
Tesla - LED bulb BULB E27, 17W, 230V, 2100lm, 25 000h, 4000K daylight white 220st - LED Bulb
3 variants
5.0 13×
Tesla - LED bulb BULB E27, 17W, 230V, 2100lm, 25 000h, 4000K daylight white 220st
LED Bulb - lamp cap E27, power input 17 W, 230 V, luminous flux 2100 lm, neutral light (4000 K), diameter of 6,5 cm, lifespan 25000 h, energy label E, 1 piece in package
Buy at the price for both existing and new AlzaPlus+ members 169,-
Great price 225,-
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TslLight23_006
Philips LED 14-100W, E27 4000K, 3pcs - LED Bulb
2 variants
4.8 169×
Philips LED 14-100W, E27 4000K, 3pcs
LED Bulb , power input 14 W, 230 V, luminous flux 1521 lm, neutral light (4000 K), diameter of 6 cm, lifespan 15000 h, energy label E, 3 in package - 73 Kč/pcs
219,-
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: PHL19083
 
AlzaPlus+ Deals 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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