Prohibited equipment lights — Delaware Permit Test

Prohibited equipment lights on the Delaware permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.

The rules

No more than four lights of 300 candlepower or more may be lit at one time on the front of a vehicle.

A car with a row of bright lights blazing on the front blinds every driver it meets.

Not more than four lights of 300 candlepower or more on the front of a vehicle shall be lit at one time.
Delaware Driver Manual, p.61

Headlights must be installed no higher than 54 inches and no lower than 24 inches from the center of the lamp to the ground.

Headlights on a jacked-up truck shine over low beams straight into the windshields of oncoming cars.

Headlights must be installed no higher than 54 inches nor less than 24 inches from the center of the lamp to the ground.
Delaware Driver Manual, p.61

Flashing lights are generally prohibited, except on emergency vehicles, school buses and snow removal equipment, and on any vehicle to signal a turn or warn of a hazard.

Flashing lights on an ordinary car would be read as a hazard or an emergency where there is none.

Flashing lights are generally prohibited except on:
Delaware Driver Manual, p.62

Unauthorized plates, frames, accessories, designs or symbols on or attached to the license plate are prohibited.

A frame or cover over the plate keeps police and witnesses from reading the number.

Unauthorized plates, frames, accessories, designs, or symbols on or attached to the license plate are prohibited.
Delaware Driver Manual, p.62

On the test

How many lights of 300 candlepower or more may be lit at once on the front of a vehicle?

Four lights. A car with a row of bright lights blazing on the front blinds every driver it meets. Delaware Driver Manual, p.61: “Not more than four lights of 300 candlepower or more on the front of a vehicle shall be lit at one time.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

What it costs

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Where these come from

Every rule here is checked against Delaware Driver Manual, published by the Delaware Division of Motor Vehicles, and against the state code itself. Last checked 2026-10-05.