= 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
 1. Seal ceiling to prevent bugs/spider's entering
 1. Seal ceiling to prevent airflow, and loss of heat.
 1. Using IC-F rated LED lights, allowed for insulation over the top of the lights.
 1. 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 ==
 * OD8QCW-110D-4PK, 110mm
  * Bought 2019 Miter10
  * Importer mailto:info@cdb.co.nz
  * Bigger 165mm faceplate NZ$8 !!
    * [[https://www.mitre10.co.nz/shop/orbit-lighting-downlight-fascia-165mm-white/p/305685 |mitre10-2020]]
    * [[https://www.lx2001.co.nz/products/orbit-lighting-downlight-fascia-165mm-white-od165-rwhi|lx2001-2020]]


== Photos ==
[[attachment:Canister-in-ceiling.jpg|{{attachment:Canister-in-ceiling.jpg||width=300}}]]


[[attachment:Canister-pulled-out.jpg|{{attachment:Canister-pulled-out.jpg||width=300}}]]

[[attachment:Led-light-installed.jpg|{{attachment:Led-light-installed.jpg||width=300}}]]

[[attachment:Led-lights-4-pack.jpg|{{attachment:Led-lights-4-pack.jpg||width=300}}]]