# Mars Hydro FC-E6500 vs HLG Scorpion Diablo: specs and price compared

A sourced, side-by-side comparison of the Mars Hydro FC-E6500 (Mars Hydro) and HLG Scorpion Diablo (Horticulture Lighting Group) among grow lights. Mars Hydro FC-E6500 is the cheaper of the two at $489.99.

## Side by side

| Spec | Mars Hydro FC-E6500 | HLG Scorpion Diablo |
| --- | --- | --- |
| US price | $489.99 | $1299 |
| Brand | Mars Hydro | Horticulture Lighting Group |
| Actual power (W) | 730 | 650 |
| Ppf umol s | 2026 | 2130 |
| Efficacy umol j | 2.8 | 3.2 |
| Flower footprint (ft) | 4x4 | 5x5 |
| Spectrum type | white-plus-red | white-plus-red |
| Diode count | 3546 | — |
| Dimmable | Yes | Yes |
| Input voltage range | 120-277 | 120-277 |
| Form factor | bar-array | quantum-board |
| IP rating | IP65 | — |
| Warranty years | 5 | 3 |
| Weight (kg) | 10.72 | — |

## Key differences

- Actual power (W): Mars Hydro FC-E6500 730 vs HLG Scorpion Diablo 650
- Ppf umol s: Mars Hydro FC-E6500 2026 vs HLG Scorpion Diablo 2130
- Efficacy umol j: Mars Hydro FC-E6500 2.8 vs HLG Scorpion Diablo 3.2
- Flower footprint (ft): Mars Hydro FC-E6500 4x4 vs HLG Scorpion Diablo 5x5
- Form factor: Mars Hydro FC-E6500 bar-array vs HLG Scorpion Diablo quantum-board
- Warranty years: Mars Hydro FC-E6500 5 vs HLG Scorpion Diablo 3

## Sources

- Mars Hydro FC-E6500: https://wholesale.mars-hydro.com/products/fc-e6500-led/ (wholesale.mars-hydro.com, verified 2026-07-11)
- HLG Scorpion Diablo: https://horticulturelightinggroup.com/pages/scorpion-diablo-specifications (horticulturelightinggroup.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/grow-lights/mars-hydro-fc-e6500-vs-hlg-scorpion-diablo/
Cite: Per The Front Desk Review, Mars Hydro FC-E6500 ($489.99) vs HLG Scorpion Diablo ($1299) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/grow-lights/mars-hydro-fc-e6500-vs-hlg-scorpion-diablo/
License: CC BY 4.0.