The Diode Dynamics H4 White SL2 Pro LED Bulbs (Pair) (DD0492P) from Nomadic Supply Company® gives a modern look to your lights. Found in many vehicles, the H4-size bulb most often serves as a headlight.Diode Dynamics set the standard for LED bulbs in 2017, with the introduction of the SL1 LED. The SL1 was the first bulb engineered to provide a true increase in performance. After many years, and thanks to improvements in technology, we are excited to introduce its successor: the SL2 Pro! The new SL2 Pro LED has been carefully refined and improved with some major upgrades: next-generation TST LED technology, an integrated top-mount fan, and a fully-integrated, wire-free design. As a direct plug-and-play replacement, it provides a significant increase in output, in a compact package.Next-Generation TST Technology:The SL2 Pro features new thermal separation technology (TST) LEDs. Unlike a traditional LED chip, TST LEDs are designed with electrical connections on the top. This means the entire bottom surface of the LED can be dedicated to channeling thermal energy out and away from the LED. This lowers thermal resistance, allowing the SL2 Pro to run at higher power levels than traditional LED bulbs, while maintaining focus.Optimized Optical Focus:Your vehicle’s housings are designed to focus light. If the light source in the housing is out of focus, it doesn’t matter how bright the bulb is – you won’t have a focused hotspot of light to shine down the road where you need it. Instead, you’ll have more glare, which lights up the foreground and makes it harder to see in the distance. The SL2 Pro LED bulb was engineered to focus light just like your original bulb, matching the original beam pattern while still providing an increase in total output. These days, some LED bulbs on the market use the smallest LEDs possible to accomplish focus, but this leads to “over-focus”, where you begin seeing streaks, lines, and harsh cutoffs in the beam pattern. Instead of using the smallest LEDs possible, the SL2 Pro was optimized to provide a smooth and comfortable beam pattern, while still maintaining focus and increased output.Internal Cooling:The SL2 Pro features an integrated top-mounted fan for superior thermal management and reliability. Since the fan is sealed inside the housing, there’s no concerns about damage from dust or moisture over time. And with the fan on the top of the bulb, the cooling happens right next to the LEDs – the source of the heat. While standard LED bulbs use heat pipes and other tricks to move heat to the bottom of the bulb, where it’s cooled off, the SL2 Pro keeps it simple and more efficient. This provides maximum cooling efficiency and output.Fully Integrated Design:Unlike traditional LED bulbs, the SL2 Pro LED bulb doesn’t have any extra wires or external drivers. Along with its compact size, that means excellent fitment inside your housing, without the need to tuck away wiring or bulky drivers. Installation is easy – simply remove your factory bulbs and the SL2 Pro will fit in its place, with a plug-and-play connector. For specific fitment information, please see Vehicle-Specific product listings, or contact us.CANBUS Systems:Some vehicles use a CANBUS electrical system that can cause flickering or bulb-out warnings when LEDs are installed. These issues can be prevented with our Anti-Flicker Modules.Click hereto determine if your vehicle needs Anti-Flicker modules.Reliability:Every part of the SL2 Pro LED was engineered for reliability, from its full metal construction to the fully-sealed design. The SL2 Pro was put through its paces in our environmental testing chambers – where the bulb lasted through repeated thermal cycles from -40 through 85 degrees Celsius (-40 to 185F), along with a range of other environmental tests. It’s also designed with transient protection, to prevent premature failure from electrical spikes in the vehicle. It’s even compatible up to 30V! We’re so confident in the SL2 Pro, that it’s backed by an industry-leading limited LIFETIME warranty.Introducing the SL2 Pro LED Bulb!As a replacement for the popular SL1 LED bulb the new SL2 Pro LED features some major upgrades: next-generation TST LED technology an integrated top-mount fan and a fully-integrated wire-free design. As a direct plug-and-play replacement it provides a significant increase in output in a compact package.Next-Generation TST Technology:The SL2 Pro features new thermal separation technology (TST) LEDs. TST LEDs are designed with electrical connections on the top which lowers thermal resistance allowing the SL2 Pro to run at higher power levels than traditional LED bulbs while maintaining focus.Correct Optical Focus:The SL2 Pro LED bulb was engineered to focus light just like your original bulb matching the original beam pattern while providing an increase in total output. Instead of using the smallest LEDs possible which can lead to streaks lines and harsh cutoffs the SL2 Pro was optimized to provide a smooth beam pattern while maintaining focus.Internal Cooling:The SL2 Pro features an integrated top-mounted fan which provides maximum cooling efficiency superior thermal management and long-term reliability. Since the fan is sealed inside the housing there’s no concerns about damage from dust or moisture over time.NOTE: LED bulbs are legal in the USA for Fog Light use only. Not compliant with DOT / FMVSS108 and not street legal in the USA for Headlights. International legality varies by country.
Diode Dynamics H4 White SL2 Pro LED Bulbs (Pair) (DD0492P) Features:
- Advanced TST LED Technology for industry-leading performance.
- Internal cooling for superior reliability.
- Fully integrated design no wires or external drivers.
- Direct replacement bulb with compact fitment.
- Backed by limited lifetime warranty.
- Designed and engineered in USA (Patents Pending).
Diode Dynamics H4 White SL2 Pro LED Bulbs (Pair) (DD0492P) Specifications:
Measured Lumens:Low Beam: 1370, High Beam: 2040 (per bulb)
Color Temp (CCT):6000K
Power (watts):22
Operating Voltage:9-30V
Current (amps @ 12.8V):1.7
Polarity:Polarity Specific
Operating Temperature:-40C to 85C (-40F to 185F)
LED Emitter:TST Automotive Grade LED
Connector(s):OEM-Size Plug and Play
Driver Features:Internal, Constant Current, Transient Protection
Materials:Copper PCB, Die Cast A360 Aluminum
Cooling:Integrated, Top-Mounted Cooling Fan
Compliance Ratings:SAE J575 Durability Test
