Lumens per Watt Comparison

Incandescent Bulb
15 lumens/W 100W bulb
15 lm/W
Compact Fluorescent (CFL)
60 lumens/W 20W equivalent
60 lm/W
LED Technology
100+ lumens/W 12W equivalent
100+ lm/W

Expected Lifespan (Hours)

Incandescent Bulb
1,000 hours ~1 year
1,000h
Compact Fluorescent (CFL)
8,000 hours ~8 years
8,000h
LED Technology
25,000+ hours ~25 years
25,000h+

5-Year Energy Savings for Typical Household

£320
Energy Cost Savings
80%
Reduction in Energy Use
1,200 kWh
Annual Energy Saved
2.4t
CO₂ Reduction (5 years)

Calculations based on average UK household with 20 light fixtures, 4 hours daily use, at £0.34 per kWh. Actual savings may vary based on usage patterns and local rates.

Understanding the Metrics

Lumens per Watt

This metric measures light output efficiency. Higher values mean more light for the same energy consumption. LED technology achieves 100+ lumens per watt, compared to 15 for traditional incandescent bulbs, representing a 6-7x improvement in efficiency.

Lifespan and Durability

LED technology's extended lifespan of 25,000+ hours means fewer replacements, reduced maintenance costs, and less waste. This longevity, combined with energy efficiency, provides exceptional long-term value.

Total Cost of Ownership

While initial purchase price may be higher, LED solutions offer significantly lower total cost over their lifespan. Reduced energy consumption and minimal replacement needs result in substantial savings over time.

Environmental Impact

Lower energy consumption directly reduces carbon emissions. Additionally, LED technology contains no mercury or other hazardous materials, making disposal safer and more environmentally responsible.