Product Overview
Most clear‑lens red marker lights use clusters of small LEDs behind a plastic lens. For example, TRUX’s Clear/Red clearance light uses 19 diodes, is DOT compliant, has a clear polycarbonate lens and runs at 12 V. United Pacific’s flush‑mount kit uses a large glass marker bulb with an 1157 base, two wire leads, and offers only a six‑month warranty. Smaller 1‑1/2 inch lights use six diodes, a scratch‑resistant glass lens, and connect via 3‑wire bullet connectors. While these products serve basic marker or stop/turn functions, they lack the intense output, dual‑voltage flexibility and durability of a premium light.
The Gen 2 Clear/Red Glass is Class light solves these shortcomings by combining a tempered‑glass star lens with a high‑output AlphaFit G2 red LED bulb. Its 3‑wire design provides both marker and high‑power modes on 12 V or 24 V systems. A sophisticated cooling system and positive‑pressure venting keep the light dry and cool, while the IP68 seal protects against water and dust. Whether you’re outfitting a show rig or heavy‑duty truck, the Gen 2 light delivers superior brightness, a pure red beam and long‑lasting performance.
Key Features & Benefits
Clear Lens with Red LED Chip – Pure, Vivid Red Glow
The clear tempered‑glass lens allows the red AlphaFit G2 LED chip to shine through without tint, producing a pure, vivid red hue that matches clear‑lens builds. The star‑burst prisms in the lens intensify and diffuse the light into a wide, crisp beam with no dark voids—a stark contrast to multi‑LED lights that exhibit pixelation.
Dual‑Function AlphaFit G2 Bulb (Marker & Signal)
At the core of this light is the AlphaFit G2 H11‑base bulb. Its three‑wire harness enables a 15 W marker mode and a 20 W high‑power signal mode. Unlike flush‑mount kits that rely on 1157 bulbs with 2‑wire leads or small lights with six diodes, the G2 provides intense output and versatile wiring. Built‑in electronics support 12 V and 24 V, so no voltage converters are needed.
Advanced Heat Dissipation & Positive‑Pressure Cooling
The AlphaFit G2 incorporates a radiator‑fin heat sink, an internal cooling fan and four check‑valve vents that create positive pressure, expelling condensation. Combined with the enlarged anodized‑aluminum body, this design allows continuous high‑power operation without overheating. Many polycarbonate lights with clusters of LEDs lack such cooling systems.
Real Tempered‑Glass Star Lens & Optimised Beam Pattern
Rather than polycarbonate, this light uses a tempered‑glass star lens that resists scratches and yellowing. The straight PCB layout of the AlphaFit bulb eliminates dark spots and provides a uniform beam. Competitor lights with polycarbonate lenses can crack and scatter light unevenly.
IP68 Weatherproof & Anodized‑Aluminum Housing
The Gen 2 housing employs a silicone gasket, anodized‑aluminum base and check‑valve vents to achieve an IP68 rating. It is dust‑tight and capable of withstanding water submersion. United Pacific’s flush‑mount kit includes a gasket but only offers a six‑month warranty; our light provides a full year of protection and more robust sealing.
Universal Fit & 12/24‑Volt Compatibility
With its standard H11 base and slim profile, the Gen 2 clear/red light fits most watermelon‑light brackets and tight installation spaces. The color‑coded three‑wire pigtail (black = ground, blue = marker, yellow = high) makes wiring straightforward. Its dual‑voltage capability allows use on semis, pickup trucks, tractors and show vehicles without additional resistors.
New Color Options & Flexible Customisation
In addition to Clear/Red, Gen 2 Glass is Class lights come in Clear/White, Clear/Amber, Amber/Amber, Amber/White, Red/Red and Red/White. Mix and match lens tint and LED color to create a custom look tailored to your build.
Performance / Compatibility / Use-Case
The Gen 2 clear/red light delivers maximum brightness and a clear, pure red color. Traditional clear‑lens red lights rely on 19 small diodes, which produce a scattered beam and are limited to 12 V. The single high‑output AlphaFit G2 chip produces a stronger, more uniform beam at 20 W high‑power mode, with a 15 W marker mode for running lights. Its 12/24‑V compatibility makes it ideal for heavy‑duty trucks, off‑road rigs and show vehicles. Positive‑pressure venting and IP68 sealing ensure the light remains condensation‑free and reliable in all weather.
Installation / Fitment / Technical Details
Mount the light using your existing watermelon‑light bracket (bracket sold separately). Connect the three‑wire pigtail: black to ground, blue to marker/running light (15 W) and yellow to brake/turn/high‑power circuit (20 W). To run at full brightness continuously, connect the yellow lead to the marker circuit and cap the blue lead. The light is compatible with 12 V and 24 V systems and uses a standard H11 base for easy bulb replacement.
Build Quality / Warranty
Every Gen 2 light is built with a tempered‑glass lens, anodized‑aluminum housing, internal fan, radiator fins and check‑valve vents. These components provide durability, efficient heat management and moisture resistance. The light comes with a one‑year warranty, surpassing the six‑month warranties offered by some flush‑mount kits and matching or exceeding warranties on other aftermarket lights. Note: Like all Glass is Class lights, this product is extremely bright and not SAE/DOT approved.
Warranty: 1-Year Limited Warranty
Designed and validated by Alpha Series Lighting for real-world truck environments.
What’s Included
-
(1) Glass is Class Gen 2 Watermelon Light – Clear Lens / Red LED (pre‑assembled)
-
(1) Pre‑installed AlphaFit G2 H11 LED bulb with 3‑wire pigtail
-
(1) Silicone gasket and check‑valve vents for IP68 sealing
-
Integrated cooling fan and radiator fins
-
Mounting bracket not included – see our accessories for compatible brackets
Frequently Asked Questions
How does the Clear/Red variant differ from Clear/White and Red/Red options?
The Clear/Red light uses a clear tempered‑glass lens with a red LED chip, delivering a pure red hue that matches clear‑lens builds. Clear/White pairs a clear lens with a white chip for white illumination, while Red/Red uses a red lens and red chip for the darkest red. All variants share the AlphaFit G2 bulb, dual‑function wiring and IP68 construction.
Will the clear glass lens yellow or crack over time?
No. The lens is made from tempered glass, which is scratch‑resistant and does not yellow or crack like polycarbonate. Competitor lights with polycarbonate lenses can crack or discolor and are often limited to a three‑year warranty.
Can I use this light on a 24‑volt truck or tractor?
Yes. The AlphaFit G2 bulb supports 12 V and 24 V, so you can wire it into your 24‑V electrical system without resistors. Competitor clear/red lights are typically limited to 12 V.
Is the light waterproof and safe to pressure‑wash?
Yes. The Gen 2 light uses a silicone gasket, anodized‑aluminum base and check‑valve vents to achieve an IP68 rating. It can handle dust, mud and water submersion, making it safe to pressure wash around the light.
Are these lights street‑legal?
No. These lights are intended for off‑road and show use only and are not SAE/DOT approved. For DOT‑compliant clear/red lights, consider 19‑diode polycarbonate models, but be aware of their lower output and durability.
How do I replace the bulb or change colors later?
The light uses a standard H11 base, making bulb replacements simple. Remove the old bulb, insert a new one and reconnect the pigtail. Replacement bulbs in various colors will be available separately.
