SEALIGHT
SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack)
$39.99Cheaper
Best LED Headlight Bulbs · head-to-head
SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance
A sourced, side-by-side comparison. SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) is cheaper at $39.99. Every spec and price links to its source.
Diode Dynamics
Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance
$80
Which is better: the SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) or Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance?
On the specs we track, they're closely matched. The SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) is the cheaper at $39.99.
See SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) on Amazon See Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) | Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance |
|---|---|---|
| US price | $39.99 | $80 |
| Brand | SEALIGHT | Diode Dynamics |
| Released | — | — |
| Lumens per set | 20000 | — |
| Color temp k | 6000 | 6000 |
| Bulb fitment | H11/H9/H8 (also sold as 9005/HB3, 9005+H11, and 9006/HB4 combos) | H9, 9005 (HB3), 9006 (HB4) only — never offered in H11 |
| Wattage (W) | 60 (per set, 30/bulb) | — |
| LED chip type | — | — |
| Beam pattern | — | Manufacturer-claimed 30-70% more light in the critical hotspot vs. halogen (ray-trace-optimized optics) |
| Cooling | Fanless — 0.5 in. aviation-aluminum heatsink | Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting |
| Rated lifespan hrs | 50000 | — |
Sources — SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack): sealight-led.com (verified 2026-08-12). Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance: diodedynamics.com (verified 2026-08-12).
What's the difference between the SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) and Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance?
Where the two actually differ on the specs we track (2 of 8). Matching specs are omitted.
- Bulb fitment: SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) H11/H9/H8 (also sold as 9005/HB3, 9005+H11, and 9006/HB4 combos) vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance H9, 9005 (HB3), 9006 (HB4) only — never offered in H11
- Cooling: SEALIGHT Scoparc S1 H11/H9/H8 LED Headlight Bulbs (2-Pack) Fanless — 0.5 in. aviation-aluminum heatsink vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting