In California, 90% of ceiling fans sold have light kits with incandescent sources and an average connected load of 120 watts. Recent Title 24 changes marginally increase energy savings in these applications via dimmers but significant energy savings potential remains by shifting the fan lighting market towards energy-efficient sources.

CLTC and Hunter Fans have partnered to design and develop a ceiling fan system that optimizes a combination of emerging LED technology and commercially-available lighting controls to create a cost-effective LED lighting kit for energy savings.

LED retrofit light kit mounted on ceiling fan		Incandescent fan (left) vs. LED fan (right)		Fans using LED fixtures

OBJECTIVE:
To design a kit that will serve as a direct bolt-on replacement for pre-existing fan systems providing a smart energy-efficient retrofit solution

APPLICATIONS:

• Both retrofit and new construction residential with possible opportunities in commercial applications

DESCRIPTION/FEATURES:

• The retrofit fan light kit will be comprised of an LED array, power supply, glass dome with a hanging tree, and a mounting plate
• The LED light kit will be designed to have an output of 32 Lumens per watt (approximately 800 lumens at 25 watts). Typical incandescent kit systems usually produce less than 15 lm/W
• Custom low profile LED driver developed by Hunter Fans and Texas Instruments
• Pull Chain Switch allows for dimming, ON and OFF functions of the LED luminaire

REFERENCES:

• LCF program information and reports
• LightFair Project Brief
• LCF Stat Sheet