Diode Dynamics
Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance
$80Cheaper
Best LED Headlight Bulbs · head-to-head
Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance vs Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs
A sourced, side-by-side comparison. Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance is cheaper at $80. Every spec and price links to its source.
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Morimoto
Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs
$142.4
Which is better: the Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance or Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs?
On the specs we track, they're closely matched. The Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance is the cheaper at $80.
See Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance on Amazon See Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance | Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs |
|---|---|---|
| US price | $80 | $142.4 |
| Brand | Diode Dynamics | Morimoto |
| Released | — | — |
| Lumens per set | — | 5200 |
| Color temp k | 6000 | 5500 |
| Bulb fitment | H9, 9005 (HB3), 9006 (HB4) only — never offered in H11 | H11 (2Stroke 4.0 line also covers H7, H4, H13, H1, H3, H8, H9, 9005, 9006, 9007, 9012, 5202, 880, and D2H) |
| Wattage (W) | — | 18-22.5 (per bulb) |
| LED chip type | — | Osram Oslon Black Flat S, 5500K |
| Beam pattern | Manufacturer-claimed 30-70% more light in the critical hotspot vs. halogen (ray-trace-optimized optics) | — |
| Cooling | Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting | Dual-layer fan (draws cool air in, exhausts warm air through the housing) |
| Rated lifespan hrs | — | — |
Sources — Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance: diodedynamics.com (verified 2026-08-12). Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs: morimotohid.com (verified 2026-08-12).
What's the difference between the Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance and Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Color temp k: Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance 6000 vs Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs 5500
- Bulb fitment: Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance H9, 9005 (HB3), 9006 (HB4) only — never offered in H11 vs Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs H11 (2Stroke 4.0 line also covers H7, H4, H13, H1, H3, H8, H9, 9005, 9006, 9007, 9012, 5202, 880, and D2H)
- Cooling: Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting vs Morimoto 2Stroke 4.0 H11 LED Headlight Bulbs Dual-layer fan (draws cool air in, exhausts warm air through the housing)