Cynhaliwch archwiliad goleuo o'ch ysgol

1. We first spoke with our caretaker to see if our school already had LED bulbs. Our school had a range of different types of bulbs, and our caretaker was able to show us the different types and helped us to recognise them. They also walked around with us as we conducted our audit.

2. We counted the number of lights in each classroom, corridor, and other areas in our school. We recorded what we found in the recording sheet. We found that in some instances, we couldn't see the bulb as it was hidden behind a panel. We tried to give each type of light we found a category. We noted the different sorts of lights we could find and identified any that needed to be left on all the time. 

3. We also attempted to answer some lighting questions. We identified how many light bulbs in our school needed to be upgraded to LEDs. We calculated how much energy these lights used during a school year, considering how many hours a day they were left on and how many days a year the school was used. 

We also calculated how much energy the school would save if all of these bulbs were upgraded and how much money that would save. We wrote a letter to our head teacher and local authority to explain what we found. 

We realized how much difference it makes to energy consumption, how many hours a day lights are left on. We also found out how much it would cost to replace inefficient bulbs, and how long it would take to pay that investment back with energy savings.

We learnt about different types of bulbs, and even identified which bulbs we were using at home. Overall, it was an enlightening activity that made us more aware of our energy consumption.