Partsam 3.5" Amber LED Watermelon Marker Lights (2-Pack) — Low-Profile Glass Lens, Aluminum Base, IP65

Partsam 3.5-inch amber LED watermelon marker lights are low-profile, hardwired turn-signal and marker lamps with a clear glass lens and aluminum-alloy base designed for 10–30V trucks, semis, pickups and custom rigs.

These two compact lights blend classic glass-lens styling with modern LED brightness and durable construction. Each lamp uses high-powered LEDs behind a pure clear glass lens to deliver a concentrated amber beam, while the aluminum-alloy housing improves heat dissipation and resists corrosion. The fixtures are IP65 rated for protection against dust and water, and their shallow profile fits tight mounting spaces from bumpers to air cleaners and cab racks.

How bright are these amber watermelon lights compared with standard marker bulbs?

The built-in high-power LEDs create a starburst-style illumination that is significantly brighter than incandescent marker bulbs, improving visibility while keeping power draw low. LEDs light faster and stand out more clearly in daylight and low-light conditions.

• High-intensity LED array for superior luminosity
• Clear glass lens maximizes light transmission
• Low power consumption versus filament bulbs

What wiring and installation steps should I expect?

Each light is hardwired with three connections: ground (white), low-brightness marker (black), and high-brightness turn signal (red). Basic wiring skills are enough for a secure install; ideal mounting locations include bumpers, under beds, or behind cab windows.

• Three-wire hookup: white = ground, black = marker, red = turn signal
• Low-profile shape fits tight spaces without cutting or modification
• Can be mounted on metal or composite surfaces with appropriate fasteners

How durable are these lights for on-road and off-road use?

The combination of an aluminum-alloy base and a pure glass lens offers better heat management and abrasion resistance than many plastic fixtures. With an IP65 rating the lights withstand rain, dust, and road grit, making them suitable for heavy-duty applications and seasonal exposure.

• Aluminum alloy housing for corrosion resistance and heat dissipation
• IP65 waterproof rating protects against dust and jets of water
• Glass lens resists yellowing and maintains clarity over time

Will these fit my vehicle and which models are they compatible with?

Designed for universal 10–30V electrical systems, these 3.5" lights work on most commercial and consumer vehicles that use marker or turn-signal fixtures. They’re commonly used as replacements or upgrades on semi trucks, Freightliner, Peterbilt, Kenworth rigs, pickups and classic trucks.

• Works with 10–30V systems — common in trucks and pickups
• Low-profile footprint suits tight mounting areas
• Sold as a 2-piece set for paired installations

Who is this for? If you need compact, brighter-than-stock amber marker and turn-signal lights that combine retro glass-lens looks with modern LED performance, these Partsam 3.5" watermelon lights suit fleet mechanics, custom truck builders, restoration enthusiasts and pickup owners who want durable, low-profile lighting. They’re geared toward anyone replacing worn incandescent markers or adding visible turn/marker lights in constrained spaces.