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Evaluating a Free LED Lighting Program
Last registered on August 08, 2019

Pre-Trial

Trial Information
General Information
Title
Evaluating a Free LED Lighting Program
RCT ID
AEARCTR-0004476
Initial registration date
July 31, 2019
Last updated
August 08, 2019 8:45 PM EDT
Location(s)

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Request Information
Primary Investigator
Affiliation
University of Chicago
Other Primary Investigator(s)
PI Affiliation
University of Chicago
Additional Trial Information
Status
On going
Start date
2019-07-13
End date
2019-11-30
Secondary IDs
Abstract
Across different recruitment waves, we study a free LED lighting study.
External Link(s)
Registration Citation
Citation
Brandon, Alec and Justin Holz. 2019. "Evaluating a Free LED Lighting Program." AEA RCT Registry. August 08. https://doi.org/10.1257/rct.4476-2.0.
Former Citation
Brandon, Alec and Justin Holz. 2019. "Evaluating a Free LED Lighting Program." AEA RCT Registry. August 08. https://www.socialscienceregistry.org/trials/4476/history/51457.
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2019-07-13
Intervention End Date
2019-11-30
Primary Outcomes
Primary Outcomes (end points)
Energy usage
Primary Outcomes (explanation)
Recruitment wave 1: Door answer, study participation, and energy usage (all hours and evening hours, 6pm to Midnight)

Recruitment wave 2: Study participation and energy usage (all hours and evening hours, 6pm to Midnight)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
See intervention description.
Experimental Design Details
Not available
Randomization Method
Computer
Randomization Unit
Recruitment wave 1: Blocks of 20-30 households will be assigned to different recruitment treatments. Within each recruitment treatment, households will be randomized at the household level for the free LED light bulbs.

Recruitment wave 2: Individual
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
Recruitment wave 1: Approach 5,000 households. Recruit 100 participants.

Recruitment wave 2: Recruit 500 participants.
Sample size: planned number of observations
Recruitment wave 1: Approach 5,000 households. Recruit 100 participants. Recruitment wave 2: Recruit 500 participants.
Sample size (or number of clusters) by treatment arms
Recruitment wave 1: Approach 5,000 households. Recruit 100 participants.

Recruitment wave 2: Recruit 500 participants.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Recruitment wave 1 will be powered to detect the effect found in DellaVigna, List, and Malmendier (2012). Recruitment wave 2 will be powered to observe the effect in de quidt, Haushofer, and Roth (2018). Across both recruitment waves, simulations suggest this study will be powered to detect a 0.07 kWh effect of the LED lighting program during evening hours.
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
University of Chicago SBS
IRB Approval Date
2019-06-25
IRB Approval Number
IRB19-0966