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G4 Light Bulbs

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61 products

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G4 Light Bulbs Osram Halostar Oven Halogen Lamps 20W G4

Osram Halostar Oven Halogen Lamps 20W G4

Halogen Lamp, Capsule, Dimmerable, G4, Temperature (K): 2800, Life: 2000 h

£1.69
Or 3 interest-free payments of £0.56/mo.*
5stores
G4 Light Bulbs Osram Halostar Starlite Pin Base Halogen Lamps 20W G4

Osram Halostar Starlite Pin Base Halogen Lamps 20W G4

Halogen Lamp, Capsule, Dimmerable, G4, Temperature (K): 2800, Life: 2000 h

£2.29
Or 3 interest-free payments of £0.76/mo.*
5stores
G4 Light Bulbs Osram Halostar Oven Halogen Lamps 10W G4
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Osram Halostar Oven Halogen Lamps 10W G4

Halogen Lamp, Capsule, Dimmerable, G4, Temperature (K): 3000, Life: 2000 h

£1.45
Or 3 interest-free payments of £0.48/mo.*
4stores
G4 Light Bulbs Osram Halostar Starlite 2800K Halogen Lamps 10W G4

Osram Halostar Starlite 2800K Halogen Lamps 10W G4

Halogen Lamp, Capsule, Dimmerable, G4, Temperature (K): 2800, Life: 4000 h

£4.00
Or 3 interest-free payments of £1.33/mo.*
2stores
G4 Light Bulbs Philips CorePro LV LED Lamps 2.7W G4 827

Philips CorePro LV LED Lamps 2.7W G4 827

LED Lamp, Capsule, G4, Temperature (K): 2700, Life: 15000 h

£6.50
Or 3 interest-free payments of £2.16/mo.*
5stores
G4 Light Bulbs Philips CorePro LV LED Lamps 1.8W GY6.35 827

Philips CorePro LV LED Lamps 1.8W GY6.35 827

LED Lamp, Capsule, G4, GY6.35, E27, Temperature (K): 2700, Life: 15000 h

£5.25
Or 3 interest-free payments of £1.75/mo.*
4stores
G4 Light Bulbs BELL Lighting 05645 LED Lamps 1.5W G4

BELL Lighting 05645 LED Lamps 1.5W G4

LED Lamp, Capsule, G4, Temperature (K): 2700, Life: 20000 h

£4.42
Or 3 interest-free payments of £1.47/mo.*
3stores
G4 Light Bulbs Integral ILG4NC005 LED Lamps 1.5W G4

Integral ILG4NC005 LED Lamps 1.5W G4

LED Lamp, Capsule, G4, Temperature (K): 2700, Life: 15000 h

£3.18
Or 3 interest-free payments of £1.06/mo.*
2stores
LEDVANCE 3.6cm LED Lamps 1.8W G4

LEDVANCE 3.6cm LED Lamps 1.8W G4

LED Lamp, Capsule, G4, Temperature (K): 2700, Life: 15000 h

£4.74
Or 3 interest-free payments of £1.58/mo.*
2stores
LEDVANCE Pin 30 320° 2700K LED Lamps 2.6W G4

LEDVANCE Pin 30 320° 2700K LED Lamps 2.6W G4

LED Lamp, Capsule, G4, Temperature (K): 2700, Life: 15000 h

£4.76
Or 3 interest-free payments of £1.58/mo.*
2stores
Osram Pin Micro LED Lamps 1W G4

Osram Pin Micro LED Lamps 1W G4

LED Lamp, Capsule, G4, Temperature (K): 2700, Life: 15000 h

£5.18
Or 3 interest-free payments of £1.72/mo.*
2stores
Normann Copenhagen 502069 LED Lamps 0.8W G4

Normann Copenhagen 502069 LED Lamps 0.8W G4

LED Lamp, Capsule, G4, Temperature (K): 3000

£5.59
Or 3 interest-free payments of £1.86/mo.*
2stores
LIGHT BULBS

FAQ

Light bulbs are available in various types like LED, CFL, and incandescent. Each type has unique features. LED bulbs are energy-efficient and long-lasting. CFLs use less energy than incandescent but more than LEDs. Incandescent bulbs provide warm light but consume more energy and have a shorter lifespan.

Light bulbs' wattage indicates energy usage rather than brightness. Consider lumens for brightness. LEDs offer high lumens with low wattage, saving energy costs. For example, a 10-watt LED can replace a 60-watt incandescent bulb, providing similar brightness.

Light bulbs like LEDs can be dimmable if specified on the packaging. Ensure compatibility with your dimmer switch. Dimmable LEDs offer flexible lighting options and save more energy when used at lower settings.

Light bulbs' lifespan varies by type. LEDs last up to 25,000 hours, CFLs around 8,000 hours, and incandescent bulbs about 1,200 hours. A longer lifespan reduces replacement frequency and costs over time.

Light bulbs' color temperature impacts mood and ambiance. Measured in Kelvin (K), warm white (2700K-3000K) creates a cozy feel, suitable for living areas. Cool white (3500K-4100K) is ideal for kitchens and workspaces, while daylight (5000K-6500K) mimics natural light for reading or detailed tasks.

Light bulbs designed for outdoor use can often be used indoors too. Check if they meet indoor requirements such as size and fixture compatibility. Outdoor-rated bulbs are durable against weather conditions but ensure they fit your indoor aesthetic needs.

Light Bulbs: 3 things to consider before buying

When choosing light bulbs, it's essential to consider the type that best suits your needs. LED bulbs are energy-efficient and have a long lifespan, making them ideal for frequent use in areas like kitchens or living rooms. CFL bulbs offer a good balance between efficiency and cost but take a little time to reach full brightness. Halogen bulbs provide excellent color rendering, making them perfect for accent lighting. Evaluate where you'll use the light bulb to determine which type will work best for you.

Forget about watts when it comes to brightness; focus on lumens instead. Lumens measure the actual light output of a bulb. For a cozy bedroom atmosphere, you might prefer a bulb with around 450 lumens, while a workspace may require something closer to 800-1100 lumens. Always check the lumens on the packaging to ensure you're getting the right brightness level for your space.

The color temperature of light bulbs can dramatically affect the mood of your room. Measured in Kelvin (K), lower numbers like 2700K emit a warm, yellowish light suitable for relaxing spaces such as bedrooms or living rooms. Higher numbers like 5000K produce cool, bluish light that mimics daylight, ideal for task-oriented areas like home offices or kitchens. Consider how each room is used to select the appropriate color temperature.

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