• eco
• LedLighting

Replacing incandescent lighting with led

2019 House with 32 canister down lights with eddison 60w bulbs.

Reasons for replacement

1. Power saving 8w vs 60w
2. Seal ceiling to prevent bugs/spider's entering
3. Seal ceiling to prevent airflow, and loss of heat.
4. Using IC-F rated LED lights, allowed for insulation over the top of the lights.
5. Gives the house a more modern look.

Power savings and payback period

• Bought led IC-F down lights retail, $48/4 = $12 per light.

• 2019, power cost $0.20/kwH, led saves ~50w, hours burn time for breakeven $12*1k/50*0.2 = 1,200hours

  • @4h per day usage, 1,200h => 1year

  • @4h per day usage, 10,000h => 7years

  • @4h per day usage, 20,000h => 13years

• 2019, estimate lifetime power saving per light, 15,000h * 50w/1k(kW) * $0.20 = $150.

Model