The SL2 and SL2 Pro are the newest high-performance LED replacement bulbs from Diode Dynamics, built for forward lighting applications. Both deliver serious upgrades over halogen, but they differ in output, cooling, and color options. Here's how they compare.
Overview Video
Features Shared by SL2 and SL2 Pro
- Lifetime Warranty: Backed by Diode Dynamics' warranty program — the last set of bulbs you'll need to buy
- Compact Fitment: Internal driver design fits seamlessly, even in applications with tight dust covers
- Precision Lighting: LED emitters precisely positioned to mimic the halogen filament, preventing glare for oncoming drivers
- Durable Housing: Cast-aluminum construction for efficient operation and long-term durability
Key Differences
- Cooling: The SL2 uses a copper-core circuit board and integrated heatsink. The SL2 Pro adds Thermal Separation Technology (TST) and a top-mounted fan for superior cooling.
- Output: SL2 delivers 1,400 lumens per bulb. SL2 Pro delivers 2,400 lumens per bulb.
- Color Options: SL2 is available in cool white and selective yellow (great for fog lights). SL2 Pro is exclusively cool white for maximum brightness.
The SL2 is ideal for a balanced output increase with yellow fog light options. The SL2 Pro is built for maximum brightness when you want the most light possible.
Application Notice: LED bulbs are legal in the USA for fog light use only. Not compliant with DOT/FMVSS108 for headlight use. Legal for off-road use.
Shop SL2 LED Bulbs at Ess K Customs
Ready to upgrade your bulbs? As an authorized Diode Dynamics dealer, Ess K Customs carries genuine SL2 and SL2 Pro LED bulbs with full manufacturer warranty.