Partsam Glass Watermelon Dual-Face LED Marker Light Amber/Red — Post-Mount, IP65 Sealed M12 Stud

Partsam's glass watermelon dual-face LED marker light is a 12V amber/red turn signal and marker lamp built with a zinc-alloy bezel and glass lens for clear, two-direction visibility on heavy trucks and trailers.

This compact lamp combines a distinctive glass lens pattern with high-output LEDs to deliver pronounced amber and red signaling from a single post-mount unit. The housing and lens design focus the beam into a crisp starburst effect that improves on-road visibility while the sealed construction helps the light withstand exposure to water, dust, and road debris. It ships ready to bolt on with an M12 stud and a three-wire hookup for simple integration into existing truck wiring.

How does this light improve visibility on the road?

The combination of a patterned glass lens and high-powered LEDs creates sharper light lines and a broader viewing angle than plain lenses. The double-face design presents amber on the forward-facing side and red toward the rear, making it easy for other drivers to recognize direction and braking signals.

• Custom LED array produces a bright starburst beam for increased contrast
• Glass lens refracts light for clearer, well-defined signal lines
• Dual-color faces ensure correct color orientation front and rear
• IP65 sealing keeps optics free from fogging and dirt buildup

How simple is installation and electrical hookup?

Installation is designed to be straightforward: the unit mounts by its M12 bolt and uses a three-wire system to match common truck wiring. Color-coded leads let you select dim marker function or full-intensity stop/turn operation without extra relays in most 12V systems.

• M12 stud for secure post-mount attachment to bumpers, roofs, or grilles
• Three-wire connection: white = ground, black = dim marker, red = full intensity
• Fits standard 12V truck electrical systems (Peterbilt, Freightliner, many semis)
• Mounting can be adjusted for 90° or 180° orientation where needed

What environments and applications is the lamp suited for?

The lamp's zinc-alloy housing and glass lens are built to resist water, sand, and road spray, making it suitable for harsh highway and off-highway conditions. It works as a bumper, roof, grille, tailgate, trailer-rear, or under-cab marker where durability and visibility are required.

• IP65-rated protection against jets of water and dust intrusion
• Durable zinc-alloy bezel helps prevent corrosion on exposed mounts
• Glass lens resists scratching and preserves light clarity over time
• Multi-use for trucks, trailers, and specialty commercial vehicles

Who is this product for? Fleet managers, owner-operators, and truck-upfitters who need a compact, durable signaling lamp with clear dual-direction visibility will find this Partsam solution practical. It’s ideal for vehicles that require a robust marker or turn signal light that integrates easily into 12V systems and withstands demanding road conditions. Choose this unit when you want improved optical performance, reliable sealing, and a simple bolt-on installation for Peterbilt, Freightliner, and other heavy-duty rigs.