# Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance: specs and price compared

A sourced, side-by-side comparison of the Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) (Fahren) and Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance (Diode Dynamics) among led headlight bulbs. Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) is the cheaper of the two at $79.99.

## Side by side

| Spec | Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) | Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance |
| --- | --- | --- |
| US price | $79.99 | $80 |
| Brand | Fahren | Diode Dynamics |
| Lumens per set | 50000 | — |
| Color temp k | 6500 | 6000 |
| Bulb fitment | H11/H8/H9 | H9, 9005 (HB3), 9006 (HB4) only — never offered in H11 |
| Wattage (W) | — | — |
| LED chip type | 24-CSP chips | — |
| Beam pattern | — | Manufacturer-claimed 30-70% more light in the critical hotspot vs. halogen (ray-trace-optimized optics) |
| Cooling | 12,000 RPM cooling fan, aviation-aluminum body + copper baseboard | Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting |
| Rated lifespan hrs | 70000 | — |

## Key differences

- Color temp k: Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) 6500 vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance 6000
- Bulb fitment: Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) H11/H8/H9 vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance H9, 9005 (HB3), 9006 (HB4) only — never offered in H11
- Cooling: Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) 12,000 RPM cooling fan, aviation-aluminum body + copper baseboard vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance Active — Sunon bearingless microfan, direct-solder copper core board, thermally-modeled zinc casting

## Sources

- Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack): https://www.fahren-veh.com/products/fahren-h11-h9-h8-led-bulbs-1000-brighter-6500k-cool-white-mini-size-2-pack (fahren-veh.com, verified 2026-08-12)
- Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance: https://www.diodedynamics.com/sl1-led-bulbs-pair.html (diodedynamics.com, verified 2026-08-12)

Canonical: https://frontdeskreview.com/gear/led-headlight-bulbs/fahren-h11-vs-diode-dynamics-sl1/
Cite: Per The Front Desk Review, Fahren H11/H9/H8 LED Headlight Bulbs, 24-CSP 6500K (2-Pack) ($79.99) vs Diode Dynamics SL1 LED Headlight Bulbs (Pair) — Discontinued Clearance ($80) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/led-headlight-bulbs/fahren-h11-vs-diode-dynamics-sl1/
License: CC BY 4.0.