The future of Light is A-Class

Your partner in Energy-Efficient Lighting

Shop GY Class A Bulbs

Over 90% more efficient

than traditional incandescent bulbs.Efficiency That Pays for Itself.

Shop GY Efficient Bulb

Excellence at Every Level.

Whether you choose the maximum or our standard efficiency: GY quality lasts for decades.

Shop GY Long-Life Bulb

Best Sellers from GY

GY GU10 dimmbare LED-Lampe 4,9 W – 790 Lumen, Energieklasse B

Normaler Preis
€36.99
Stückpreis
pro

GY GU10 LED-Lampe 2,9 W – ersetzt 50 W Halogen – Energieeffizienzklasse A

Normaler Preis
€32.99
Stückpreis
pro

GY GU10 LED-Lampe 4 W – 720 Lumen ersetzt 60 W Halogen – Energieklasse A

Normaler Preis
€41.99
Stückpreis
pro

GY GU10 LED-Lampe 4,5 W – 805 Lumen ersetzt 100 W Halogen – 36° Abstrahlwinkel – Energieklasse A

Normaler Preis
€39.99
Stückpreis
pro

Low running cost

 Big Savings in a Small Package At only 2.9W - the ultra-low energy light bulbs will save your money right out of the box.Costing only €0.6 per year to run, you can reduce your lighting bills by up to 92%*

Better for the environment

 Every Bulb Counts Toward 2050 The generation of electricity is one of the largest contributing factors to the carbon footprint.Government guidelines have targeted 2050 to becarbon neutral with the Net Zero strategy.Changing just one light bulb to an A-class rated LED light bulb will reduce your carbon footprint by9.1kg CO2 per year*

Light with a Lighter Footprint

 The shell of this Lamp contains 50% GRS certified recycled post consumerpolyamide. Crafted with GRS-certified recycled materials — because even a light bulb can help lighten the load on our planet.

Shipping Policy

Return Policy

Warranty Policy

GY Efficient Series
Customers rate us 4.8/5 based on 321 reviews.

EU Compliance

Hazard-Free

UK Market Ready

Circular Economy

Unser Blog
LED vs Energy Saving Bulbs – High Brightness 100W Halogen Replacement Explained
15 Apr

LED vs Energy Saving Bulbs – High Brightness 10...

Mehr lesen
Dimmable LED Bulbs Guide – How to Choose Energy-Saving 807 Lumens Lighting for Your Home
15 Apr

Dimmable LED Bulbs Guide – How to Choose Energy...

Mehr lesen
LED Bulb Cracking: Causes, Risks & Replacement Tips
15 Apr

LED Bulb Cracking: Causes, Risks & Replacement ...

Learn why a LED light bulb cracking at the base occurs, how thermal degradation of plastic damages bulbs, and how to improve your light bulb replacement strategy.
Mehr lesen
Longest Lasting LED Bulbs – 4.5W GU10 That Replaces 100W Halogen with Superior Lifespan
14 Apr

Longest Lasting LED Bulbs – 4.5W GU10 That Repl...

Every few months, another halogen would flicker, buzz, and die. I'd drag out the step stool, unscrew a bulb that was still hot enough to burn, and add another empty...
Mehr lesen
Brightest Energy Saving Bulbs – 1521 Lumens LED Brightness with Just 9.5W Power
14 Apr

Brightest Energy Saving Bulbs – 1521 Lumens LED...

Mehr lesen
12V G4 LED Bulbs: Efficient Halogen Replacement (2026)
14 Apr

12V G4 LED Bulbs: Efficient Halogen Replacement...

Upgrade to 12V G4 LED bulbs: energy-saving, long-lasting halogen replacements ideal for homes, RVs, and marine lighting.
Mehr lesen
Most Energy Efficient Light Bulbs: High Lumens LED That Cuts Power Usage
13 Apr

Most Energy Efficient Light Bulbs: High Lumens ...

Mehr lesen
Best Energy Saving Light Bulbs: Bright LED Solutions That Cut Bills Fast
13 Apr

Best Energy Saving Light Bulbs: Bright LED Solu...

I still remember that sinking feeling when I opened my electricity bill. Nothing had changed at home. Same habits, same appliances. Then I looked at the ceiling. Those halogens –...
Mehr lesen