Mars Hydro
Mars Hydro FC-E6500
$489.99Cheaper
Best Grow Lights · head-to-head
Mars Hydro FC-E6500 vs HLG Scorpion Diablo
A sourced, side-by-side comparison. Mars Hydro FC-E6500 is cheaper at $489.99. Every spec and price links to its source.
Horticulture Lighting Group
HLG Scorpion Diablo
$1299
Which is better: the Mars Hydro FC-E6500 or HLG Scorpion Diablo?
On the specs we track, they're closely matched. The Mars Hydro FC-E6500 is the cheaper at $489.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Mars Hydro FC-E6500 | HLG Scorpion Diablo |
|---|---|---|
| US price | $489.99 | $1299 |
| Brand | Mars Hydro | Horticulture Lighting Group |
| Released | — | — |
| 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 | — |
Sources — Mars Hydro FC-E6500: wholesale.mars-hydro.com (verified 2026-07-11). HLG Scorpion Diablo: horticulturelightinggroup.com (verified 2026-07-11).
What's the difference between the Mars Hydro FC-E6500 and HLG Scorpion Diablo?
Where the two actually differ on the specs we track (6 of 12). Matching specs are omitted.
- 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