Light Bars & LED Lighting in Pennsylvania
Pennsylvania is the one state that genuinely mandates an opaque cover: roof or roll-bar mounted off-road lights may be installed only if they are not used on a highway and are covered with an opaque covering at all times while operating on one.
Verified against primary sources · August 2026
What the law says
Pennsylvania also requires a switch with a pilot light showing the driver when the lamps are on. This is the state the 'covered and off' advice was written for. A cover is genuinely required on the highway in this state. Mounting a light bar is legal everywhere; what states regulate is using it on public roads, and the usual constraint is a mounting-height ceiling plus a per-type lamp count.
Specific Limits
- Rule
- roof or roll-bar mounted off-road lights may be installed only if not used on a highway AND covered with an opaque covering at all times while operating on a highway
- Switch
- a switch with a pilot light indicating to the driver when they are on is required
- Cover required
- Yes
Frequently Asked Questions
Are light bars & led lighting legal in Pennsylvania?
What are the exact light bars & led lighting limits in Pennsylvania?
Street-legal light bars & led lighting picks
Gear that helps you mod without a ticket in Pennsylvania.
Required on the road in Pennsylvania, Michigan, and Virginia — but check your state first: Illinois and Kentucky prohibit tinted lens covers.
Shop on AmazonHousings with SAE/DOT markings are what inspectors look for.
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