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Tier
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Energy & Climate Resilience Required from Certified GHI Zero Energy Certified GHI Zero Energy Ready Certified Reduced Electromagnetic Frequency (EMF)

Majority LED Lighting

A majority of fixtures use LED lamps.

Spec

A majority of fixtures use LED lamps.

Applies uniformly from Certified upward.

Scope

All interior and exterior lighting fixtures in the dwelling. Decorative-only fixtures (e.g. chandeliers used <1 hr/day) count toward the total.

Requirements

  1. 01.

    At least 50% of installed lamp sockets must be fitted with LED lamps or LED-integrated fixtures (Certified threshold).

  2. 02.

    For Gold+, the practical target is >90% LED — incandescent + halogen should be limited to specialty applications (oven, refrigerator, niche decorative).

Documentation

Evidence the inspector / Institute will need.

  1. 01.

    Lighting inventory listing each fixture type, lamp type (LED / CFL / halogen / incandescent), and count. Spreadsheet or marked-up floor plan both acceptable.

  2. 02.

    OR purchase receipts / fixture spec sheets showing LED-integrated rating for new construction.

Guidance

Quality over count

A "majority LED" count check can pass with low-CRI cheap bulbs that look terrible. For long-term satisfaction, specify ≥90 CRI bulbs and a consistent color temperature (2700K-3000K for residential spaces). ENERGY STAR-rated LEDs include color rendering and lifetime requirements.

Note

Dimmer compatibility is a common failure point — many older incandescent dimmers cause LED flicker. Replace dimmers when swapping to LED, or specify "dimmable LED" + a matched LED-compatible dimmer (Lutron Diva, Leviton SureSlide, etc.).

Resources