Glass is Class Gen 2 Amber Lens / Amber LED Watermelon Light – Dual-Function Marker & Signal
High-output dual-function watermelon light with real amber glass lens and AlphaFit G2 LED. Designed for marker and signal applications with improved thermal management, even beam output, and full 12V/24V compatibility.
Dual-Function AlphaFit G2 LED System
Three-wire LED system delivers independent marker and signal functionality.
Features include:
- 15W low-power mode (marker/running light)
- 20W high-power mode (turn signal or constant high output)
- Straight PCB LED design for uniform light distribution
Eliminates center dark spots common in diode-array style bulbs.
Real Amber Glass Lens with Starburst Optics
Tempered glass lens designed for durability and controlled light diffusion.
Key characteristics:
- Amber glass with radial prism (starburst) pattern
- Even light spread with no hot spotting
- Scratch-resistant and UV-stable
Maintains clarity and appearance over time compared to polycarbonate lenses.
Advanced Thermal Management System
Designed to support continuous high-output operation.
Cooling system includes:
- Oversized anodized aluminum housing
- Integrated heat sink fins
- Internal high-speed cooling fan
- Copper-based thermal transfer through LED base
Allows full-power operation without overheating or output degradation.
Positive-Pressure Venting & IP68 Sealing
Moisture control system prevents internal condensation.
Features include:
- Internal fan creates positive pressure inside housing
- Four PTFE one-way vents to expel moisture
- Thick silicone gasket sealing lens to housing
- IP68-rated protection against water and dust
Designed for long-term durability in harsh environments.
12V / 24V Dual Voltage Compatibility
Compatible with both standard automotive and commercial truck electrical systems.
- No external resistors or converters required
- Stable operation across voltage ranges
Suitable for semi-trucks, pickups, and custom builds.
Standard H11 Bulb Platform
Uses replaceable AlphaFit G2 LED bulb with H11 base.
Benefits include:
- Easy bulb replacement or upgrades
- No need to replace full housing
- Standardized connection platform
Application & Use Cases
Designed for:
- Cab and air cleaner lighting
- Marker and signal lighting
- Show trucks and custom builds
Due to high output and beam characteristics, intended for off-road and show use.
Installation & Fitment
- 3-wire harness: ground, marker (low), signal (high)
- Compatible with standard watermelon light mounting footprint
- Fits most aftermarket brackets (sold separately)
No additional modules or load resistors required.
Build Quality & Materials
- Tempered amber glass lens
- Anodized aluminum housing
- Integrated fan + passive cooling system
- PTFE venting system
- Silicone sealing gasket
Designed for vibration resistance and long service life.
What’s Included
- 1 × Glass is Class Gen 2 Amber/Amber Watermelon Light assembly
- 1 × Pre-installed AlphaFit G2 LED bulb (H11, dual-function)
- Integrated cooling fan and heat sink system
- Pre-wired 3-wire harness (ground, marker, signal)
Note: Mounting bracket sold separately.
Warranty Coverage
Backed by a 1-year limited warranty from BTS Lighting.















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