Diode Dynamics
Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance
$80
Best LED Headlight Bulbs · head-to-head
Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance vs GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7)
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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GTR Lighting
GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7)
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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 | GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7) |
|---|---|---|
| US price | $80 | — |
| Brand | Diode Dynamics | GTR Lighting |
| Released | — | — |
| Lumens per set | — | 9150 |
| Color temp k | 6000 | 5450 |
| Bulb fitment | H9, 9005 (HB3), 9006 (HB4) only — never offered in H11 | H7 (bench-tested unit); sold across other common sizes |
| Wattage (W) | — | 38.2 (per bulb) |
| LED chip type | — | Elec-Tech LED chips |
| 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 | Fan-cooled |
| Rated lifespan hrs | — | 5000 |
Sources — Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance: diodedynamics.com (verified 2026-08-12). GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7): bulbfacts.com (verified 2026-08-12).
What's the difference between the Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance and GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7)?
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 GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7) 5450
- Bulb fitment: Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance H9, 9005 (HB3), 9006 (HB4) only — never offered in H11 vs GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7) H7 (bench-tested unit); sold across other common sizes
- Cooling: Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting vs GTR Lighting Ultra Series 2 LED Headlight Bulbs (H7) Fan-cooled