U.S. flag illuminated at night beside a law book and warm ceremonial light
Flag Code and night display

Proper illumination matters.

The U.S. Flag Code gives a simple nighttime rule of respect: a flag may be displayed twenty-four hours a day when a patriotic effect is desired, if it is properly illuminated during the hours of darkness.

The rule

Sunrise to sunset is the custom. Night display needs light.

The U.S. Flag Code, 4 U.S.C. § 6, states that it is the universal custom to display the flag only from sunrise to sunset on buildings and stationary flagstaffs in the open. It also allows 24-hour display when a patriotic effect is desired, provided the flag is properly illuminated during darkness. Read 4 U.S.C. § 6

SolarFlag.com is not a law firm and this page is not legal advice. It is a practical, plain-language guide for people who want their flag display to be visible, respectful, and carefully lit after sunset.

“When a patriotic effect is desired, the flag may be displayed twenty-four hours a day if properly illuminated during the hours of darkness.”
U.S. Flag Code, 4 U.S.C. § 6(a)

Plain English

What does “properly illuminated” mean?

The Flag Code does not give a detailed lighting engineering specification on this point. In practical terms, “properly illuminated” means the flag should be visible in darkness, not merely hanging on a pole while hidden by night.

A good solar flag lighting design aims for respectful visibility: enough light to show the flag clearly, with beam placement that avoids sloppy glare, harsh spillover, and a cheap afterthought look.

1

Visible flag

The flag should be recognizable and visible during nighttime display.

2

Respectful light

The lighting should honor the flag, not create glare or visual clutter.

3

Consistent operation

Dusk-to-dawn or timer-based lighting should support the intended display period.

4

Good placement

The fixture and panel should be located for sun, beam angle, pole height, and viewing direction.

5

Flag condition

Lighting does not replace basic care. A worn, torn, or tangled flag still needs attention.

6

Local judgment

Sites vary. Schools, memorials, homes, and businesses may need different lighting approaches.

Practical note: “Proper illumination” is about the flag being visible during darkness. A solar light must have enough daytime charging exposure and battery capacity to support the intended nighttime display.

The solar answer

Use the sun to support nighttime respect.

Solar flag lighting is a practical way to support nighttime display where trenching, electrical work, or long wire runs are unattractive. The system collects sunlight during the day and uses stored energy to illuminate the flag after sunset.

A good design considers pole height, flag size, solar exposure, fixture location, beam spread, battery capacity, and how the flag is viewed from the road, walkway, entry, memorial, or building.

  • Supports nighttime display
  • Reduces trenching concerns
  • Uses solar charging
  • Can operate automatically
  • Improves flag visibility
  • Protects the visual dignity of the site
Solar flagpole lighting design showing warm beam angle on a flag

SolarFlag.com

Display the flag with care after sunset.

If the flag remains outdoors at night, give it the visibility and dignity it deserves. Solar lighting can make that easier, cleaner, and more beautiful.