# ViparSpectra KS5000 vs Fluence SPYDR 2i: specs and price compared

A sourced, side-by-side comparison of the ViparSpectra KS5000 (ViparSpectra) and Fluence SPYDR 2i (Fluence) among grow lights. ViparSpectra KS5000 is the cheaper of the two at $599.99.

## Side by side

| Spec | ViparSpectra KS5000 | Fluence SPYDR 2i |
| --- | --- | --- |
| US price | $599.99 | $1335 |
| Brand | ViparSpectra | Fluence |
| Released | 2022 | — |
| Actual power (W) | 500 | 630 |
| Ppf umol s | 1200 | 1700 |
| Efficacy umol j | 2.4 | 2.7 |
| Flower footprint (ft) | 4x4 | 4x4 |
| Spectrum type | white-plus-red | full-spectrum-white |
| Diode count | 1260 | — |
| Dimmable | Yes | Yes |
| Input voltage range | — | 100-277 |
| Form factor | foldable-bar | bar-array |
| IP rating | — | — |
| Warranty years | 3 | — |
| Weight (kg) | — | — |

## Key differences

- Actual power (W): ViparSpectra KS5000 500 vs Fluence SPYDR 2i 630
- Ppf umol s: ViparSpectra KS5000 1200 vs Fluence SPYDR 2i 1700
- Efficacy umol j: ViparSpectra KS5000 2.4 vs Fluence SPYDR 2i 2.7
- Spectrum type: ViparSpectra KS5000 white-plus-red vs Fluence SPYDR 2i full-spectrum-white
- Form factor: ViparSpectra KS5000 foldable-bar vs Fluence SPYDR 2i bar-array

## Sources

- ViparSpectra KS5000: https://www.viparspectra.com/blogs/home-grower/ks5000-the-best-grow-light-available-for-your-4-x-4-grow-tent (viparspectra.com, verified 2026-07-11)
- Fluence SPYDR 2i: https://fluence-led.com/wp-content/uploads/2024/11/FLU-SpecSheet_SPYDR2i47_032024-D-1-1.pdf (fluence-led.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/grow-lights/viparspectra-ks5000-vs-fluence-spydr-2i/
Cite: Per The Front Desk Review, ViparSpectra KS5000 ($599.99) vs Fluence SPYDR 2i ($1335) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/grow-lights/viparspectra-ks5000-vs-fluence-spydr-2i/
License: CC BY 4.0.