Student Worksheet

Thought-starter: How many things in your classroom use energy?

Before you begin your audit of lights and appliances in your classroom it's important to know that there are lots of different types of light to look for. Which light is which?

Guess how many of these your classroom has. Then count them!

Switch to Save!

Your Principal has just found out switching halogen downlights to LED downlights is a good move because LED downlights are more efficient, both environmentally and economically.

Your Principal has audited the school and added up the total number of halogen downlights in each room.

Room	Number of halogen downlights
Classrooms	13
Staffroom	8
Hall	6
Bathrooms	5
Office	9
Canteen	5

Based on this table calculate the money and greenhouse gas savings if your classroom switched all its halogens to LEDs (show your workings).

Switching 1 halogen for 1 LED saves 800Kg C0₂e
Switching 1 halogen for 1 LED saves $25 per year

Take it home!

How much would you save if you switched to LED downlights at home? Use this Take It Home - Lighting Audit to find out!

Switch to Save - Classroom Audit

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