🔥 Why Choose Glass is Class Duo?
Choose the required color pair — This listing is for a replacement Glass Is Class Duo LED bulb. The two colors depend on the variation selected; the glass housing and mounting bracket are separate.
✅ Custom H11 Dual-Color LED Bulb – Unlike traditional H11 bulbs, this 3-wire bulb setup is designed specifically for dual-color functionality, allowing seamless transitions.
✅ Versatile & Easy Wiring – Use a toggle switch, parking lights, or marker lights to activate the secondary color. If power is applied to both wires, the secondary color overrides the primary color automatically.
✅ Perfect for Show Trucks & Big Rigs – Ideal for semi-trucks, classic rigs, work trucks, and custom show builds, these dual revolution watermelon lights ensure your truck gets the attention it deserves.
⚙️ Tech Specs:
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Operating Voltage: 12V
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LED Type: Custom H11 dual-color LED bulb (fanless, 3-wire setup)
📦 What’s Included?
✔️ (1) Custom Dual-Color H11 LED Bulb
✔️ 6 Month Warranty
Frequently Asked Questions
Does this Duo replacement bulb include a glass housing?
No. This listing is for one custom H11-style dual-color LED bulb. The glass lens, housing, bezel and vehicle mounting bracket are not included. Match it to your existing Glass Is Class Duo assembly.
Which two-color replacement bulbs are available?
The Color selector lists Amber/White, Amber/Purple, Amber/Green, Amber/Blue, Amber/Red, Red/White, Red/Purple, Red/Green and Red/Blue. Select the required pair and check that variation’s availability before ordering.
What happens if both color power leads are energized?
The secondary color overrides the primary color when both are powered. This Duo bulb uses a three-wire arrangement for ground and the two color functions; confirm the supplied lead identification before connecting it.
Can I use this bulb on a 24V truck or in an OEM H11 headlight?
The listed operating voltage for this replacement bulb is 12V. An H11-style base does not make it a general headlight bulb or establish 24V compatibility. Choose a bulb specified for your exact housing, electrical supply and intended function.
Is this the same replacement as a Gen 2 AlphaFit Duo bulb?
This listing is the fanless Glass Is Class Duo replacement bulb, with a six-month limited warranty. Match the exact product and generation before replacement; do not infer Gen 2 interchangeability from the Duo name or similar base.
