Diode Dynamics DD0638S H11/H8/H9 White SL2 LED Fog Light Bulb with AntiFlicker Module (Single)

The Diode Dynamics DD0638S is a single H11/H8/H9 White SL2 LED bulb bundled with an AntiFlicker module — a direct, plug-and-play replacement for your factory halogen fog light bulb. Designed and engineered in the USA, the SL2 represents a significant upgrade over the previous SLF generation, featuring a more compact design, an integrated internal driver, and improved overall reliability.

Optimized Optical Focus

Unlike competitors that chase raw lumen numbers, the SL2 was engineered to position its light source at the same focal point as the original halogen bulb. This preserves the housing's designed beam pattern, delivering a stronger, well-defined hotspot for improved distance and visibility — with no added glare or scatter.

Fanless Thermal Management

The SL2 runs at 14 watts and relies on a copper-core circuit board and a thermally optimized, full-metal housing with an integrated heatsink to manage heat effectively — no fan required. This fanless approach reduces mechanical complexity and improves long-term reliability.

Included AntiFlicker Module

This kit includes one Diode Dynamics AntiFlicker (CANBUS) module designed to eliminate bulb-out warning errors and flickering in vehicles with sensitive electrical monitoring systems. The module features nonpolar function, full power smoothing, and resistive/capacitive feedback to handle even demanding modern CANBUS systems found in vehicles such as Ram, Jeep, VW, BMW, Audi, and Mercedes.

Key Features:

• Direct plug-and-play replacement for H11, H8, and H9 factory bulbs
• Optimized optical focus matches OEM beam pattern — no added glare
• 14-watt output with copper-core PCB and full-metal integrated heatsink
• Compact, fanless design with internal driver for improved reliability
• Automotive-grade LEDs for superior performance and longevity
• Includes one AntiFlicker CANBUS module to prevent error codes and flickering
• Available in white; sold as a single bulb with one module
• Designed and engineered in the USA (Patents Pending)
• Backed by a limited lifetime warranty

Application Notice: LED replacement bulbs are legal in the USA for fog light use only. This product is not compliant with DOT/FMVSS108 and is not street legal for headlight use in the USA. Legal for off-road use including ATV, snowmobile, and off-road racing applications. International legality varies by country.