AlphaFit Duo LED Bulb – Dual-Color Watermelon Light Bulb (Gen 2) | Amber/Purple

Dual-color AlphaFit Gen 2 LED bulb engineered for glass watermelon light housings. Uses independent LED banks and a compact emission surface to produce a uniform star-beam pattern with no center void across both colors.

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True Dual-Color LED Control System

Three-wire configuration provides independent control of each color without switchback behavior.

Features include:

• Dedicated LED bank per color (Amber / Purple)
• Full-power operation on each circuit
• Secondary circuit overrides when both are powered

Enables clean integration with marker, auxiliary, or switched circuits.

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23W High-Output Gen 2 Platform

Each color operates at full output independently.

Specifications:

• 23W per active color
• Stable intensity with no brightness-based switching
• Consistent output across both color channels

Machine-built Gen 2 platform improves consistency and reliability.

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Dual LED Chip Bank Architecture

Each side of the bulb contains:

• One dedicated LED bank for Amber
• One dedicated LED bank for Purple

Benefits include:

• Instant color switching
• No color blending or bleed
• Identical beam pattern for both colors

Maintains consistent optical performance regardless of active color.

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Focused Optical Output for Glass Lenses

Designed specifically for glass star-pattern watermelon lenses.

Key characteristics:

• Compact emission surface for precise optical focus
• Full beam fill with no center dark spot
• Optimized for radial prism (starburst) lenses

Outperforms multi-diode and dual-revolution style bulbs in glass applications.

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Advanced Thermal Management System

Hybrid cooling system supports continuous operation.

Cooling components include:

• Oversized anodized aluminum housing
• Internal active cooling fan
• Passive heat sink beneath LED chips

Maintains thermal stability under sustained load conditions.

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Positive-Pressure Venting System

Active airflow manages internal moisture.

Features include:

• Positive-pressure airflow within housing
• Condensation reduction during operation
• Moisture expelled through internal circulation

Improves durability in varying environmental conditions.

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Application & Use Case

Designed for:

• Glass is Class Duo watermelon light housings
• Dual-color marker and auxiliary lighting
• Show truck and custom builds

⚠️ Not intended for plastic or reflector-style housings.

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Installation & Technical Details

• Voltage: 12V / 24V compatible
• Power Draw: 23W (active color)
• Base Type: H11-style
• Wiring:
  • Ground
  • Primary color (Amber)
  • Secondary color (Purple override)

No external resistors required for standard operation.

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Build Quality & Materials

• Anodized aluminum housing
• Integrated active cooling fan
• Passive thermal structure
• Precision-machined internal components

Gen 2 design improves durability, output consistency, and failure resistance.

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What’s Included

• 1 × AlphaFit Duo LED Bulb (Gen 2) | Amber/Purple
• Integrated active cooling system
• Pre-wired 3-wire lead

Note: Glass lens and housing sold separately unless purchased as a complete kit.

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Warranty Coverage

Backed by a 1-year limited warranty from Alpha Series Lighting.