Heat Given Off by Halogen, LED, and CFL light bulbs Group # Period Names:

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Presentation transcript:

Heat Given Off by Halogen, LED, and CFL light bulbs Group # Period Names:

Scientific Question

Variables IV: DV: Control Variables: (3)

Materials

Background (2-3 facts about each type of light bulb)

Sources (websites) 1. 2.

Hypothesis

Procedure

Data Table Title: __________________________ Type of Light Bulb Change in Temperature (°C) Trial 1Trial 2Trial 3Average

Graph

Analysis Lamp (A19) bulb technology Price per bulb (Est.) Lifespan (Hours) Watts (Varies by Mfr.) Lumens (Varies by Mfr.) 60-Watt Incandescent $ LED (60-Watt–Equiv.) $720, CFL (60-Watt–Equiv.) $310, Halogen (60-Watt Equiv.) $

Analysis: Cost and Energy Savings Cost per kW $.10/hr Watt  kW conversion = Cost for using each light bulb for 30 days assuming they run for 24 hours/day. A. CFL: B. Halogen: C. LED: D. How much money is saved using the LED bulbs?

Analysis Continued.. 1. How many of each type of light bulb would you need to purchase if you planned to use them 24hrs a day for 10years? 2. What is the cost of purchasing each type of light bulb? A. CFL: B. Halogen: C. LED:

Conclusion