Product Overview
Make the upgrade today to long-lasting, high-performance technology with this Alpha Series Lighting 3157 Glass Watermelon Light Upfitter Kit.
Key Features & Benefits:
- Powerful 26W Alpha Series 3157 LED Bulb:
- High-output amber LED signal bulb for maximum brightness.
- Integrated high-speed fan keeps the bulb cool, preventing overheating.
- Designed for long-lasting performance and durability.
- Complete Moisture Prevention System:
- Adhesive Silicone Gasket:
- Replaces foam gaskets (if equipped) for superior sealing.
- Breather Patch Technology:
- Prevents condensation buildup by allowing moisture to escape without letting water in.
- Reduces pressure variances, protecting the glass from stress cracks.
- Creates a Positive Pressure System:
- The cooling fan pushes hot air and condensation out, preventing internal moisture.
- Adhesive Silicone Gasket:
Performance / Compatibility / Use-Case
The Problem:
3157 sealed glass watermelon lights have become incredibly popular, but they come with a major flaw—moisture buildup. Since they are completely sealed, they trap condensation from the natural moisture in LED bulbs and 3157 sockets. As the LED bulb heats up, condensation forms inside, with nowhere to escape. Over time, this water buildup kills 3157 LED bulbs, leading to premature failure and unnecessary replacements.
The Solution:
The Alpha Series Lighting 3157 Glass Watermelon Light Upfitter Kit is the ultimate fix for moisture issues in 3157 glass watermelon lights. This kit completely seals your existing light and integrates a powerful Alpha Series 3157 LED bulb, eliminating condensation buildup while maximizing brightness.
Installation / Fitment / Technical Details
- Drill a small hole in the back of your 3157 base.
- Apply the venting patch over the hole.
- Replace the foam gasket with the adhesive silicone gasket (if needed).
- Allow 24 hours for the patch to adhere before turning on the light for best results.
Build Quality / Warranty
Contact BTS Lighting for warranty information
What’s Included
✔ 1x Alpha Series Lighting 3157 Amber LED Bulb
✔ 1x Adhesive Silicone Gasket
✔ 1x Venting Patch
Frequently Asked Questions
Is this the most updated version of the kit?
Actually, we’re developing a fully waterproof, vented 3157 glass watermelon light with our high-power, ultra-bright Alpha Series LED bulbs. However, this Upfitter Kit is the perfect solution for truckers who already have 3157 glass watermelon lights and want to eliminate moisture buildup and maximize light output.





















