Engineered for Precision. Designed for Durability. Built for Glass is Class.
The AlphaFit LED Bulb is the next evolution in auxiliary lighting from Alpha Series Lighting. Designed exclusively for our single-color Glass is Class Watermelon Lights, AlphaFit delivers precision-engineered performance in a compact, low-wattage package—purpose-built to enhance reliability, eliminate condensation issues, and elevate your lighting experience without compromise.
Whether you’re outfitting a heavy-duty rig or customizing a show-worthy pickup, AlphaFit is the bulb you want inside your glass watermelon lights.
🛠️ Purpose-Built for Watermelon Lighting Applications
Unlike generic H11 LED bulbs, the AlphaFit was designed from the ground up to work seamlessly with Glass is Class Watermelon Light housings. It uses a true H11 base for direct fitment and features a compact internal-fan cooling system paired with radiator fin-style passive heat sinks. This combination allows it to run cool, fit tight spaces, and eliminate external exposure—solving the most common failure points seen in older designs.
🧠 Simple, Smart, Durable.
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14W / 1.16A at 12V – Optimized power draw for extended reliability
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Straight PCB LED alignment – Full, even starburst beam without a center void
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Internal fan + passive fin cooling – Keeps the bulb compact and cool
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Standard H11 base – Drop-in fit for all Alpha Series single-color Glass is Class lights
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Zero CANBUS interference – Clean, flicker-free operation
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Clocked LED chip orientation – Ideal for cab lights, mirror lights & tight fitments
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IP68 sealed performance – When paired with our updated housing and silicone gasket
✅ Replacing Our Original 60W Bulb
The AlphaFit LED is now standard in all single-color Glass is Class Watermelon Lights, replacing the former 60W LED bulb. While slightly lower in raw intensity, AlphaFit offers significantly improved beam uniformity, a longer lifespan, and zero external exposure—making it a major upgrade in both safety and longevity.
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No exposed rear fans to collect road debris
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No moisture intrusion through the back of the bulb
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No compromise on the signature Glass is Class star pattern
🔍 Compatibility:
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Specifically engineered for:
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For use in Alpha Series Lighting’s single-color Glass is Class assemblies only
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Not recommended or supported for OEM headlights or CANBUS-equipped circuits
📦 What’s Included:
✔️ (1) AlphaFit H11 LED Bulb
✔️ Factory-sealed anti-static packaging
📄 Warranty: 1-Year Limited Warranty
⚠️ Not for Headlights or On-Road Use
The AlphaFit is not intended for use in headlamp or fog light applications. It does not contain CANBUS circuitry and is engineered strictly for auxiliary and custom truck lighting such as cab lights, sleeper panels, air cleaner lights, and other show and off-road watermelon light applications.
🚛 Trusted by Builders. Backed by Alpha Series.
From show trucks and working semis to the booming pickup truck lighting scene, the AlphaFit LED is designed to meet the evolving demands of the modern truck community. It delivers the beam performance, reliability, and fitment flexibility you expect from a premium-grade auxiliary lighting product.
Engineered by Alpha Series. Powered by innovation. Designed for Glass is Class.






















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