Kessil A360X PAR & PPFD Data
Kessil · A360X · Reef
The figures below are compiled from public sources: Kessil’s own product documentation, Bulk Reef Supply’s setup guidance, and BRStv’s bench testing. They are not our own measurements. Each row says where the value came from.
Kessil does not publish a numeric PAR grid
Kessil does not publish a per-position PAR grid or PPFD map for the A360X. Its official figures are limited to power draw, coverage footprint, penetration depth, and target PAR ranges by coral type — not a grid of µmol/m²/s readings. There is no manufacturer chart to transcribe, so the grid tables used on our grow-light pages do not exist for this fixture.
What Kessil states:
| Metric | Manufacturer stated | Source |
|---|---|---|
| Max power draw | 90 W max AC | kessil.com A360X Tuna Blue |
| Coverage (mixed reef) | 24 × 24 in | kessil.com A360X Tuna Blue |
| Coverage (SPS / heavily planted) | 20 × 20 in | kessil.com A360X Tuna Blue |
| Penetration | 24–30 in beyond the water surface | kessil.com A360X Tuna Blue |
| Dimensions | 2.1 in height × 4.3 in diameter (5.3 × 11 cm) | kessil.com A360X Tuna Blue |
| Spectrum | Tuna Blue + Red + Green + Purple (Violet+Indigo) via controller | kessil.com A360X Tuna Blue |
Target PAR by coral type (manufacturer / retailer guidance)
Kessil and Bulk Reef Supply frame the A360X by target PAR range rather than a measured grid. These are placement recommendations, not readings from a specific tank.
| Coral type | Target PAR | Fixtures for a 24 × 24 in area | Source |
|---|---|---|---|
| LPS / soft coral | 75–150 PAR | 1 × A360X | BRS A360X FAQ |
| SPS coral | 200–350 PAR | 2 × A360X | BRS A360X FAQ |
| Setup | Recommended mounting height | Source |
|---|---|---|
| Standard (no reflector) | 8 in above the water surface | BRS A360X FAQ |
| With Narrow Angle Reflector | 13 in above the water surface | BRS A360X FAQ |
Third-party bench readings (BRStv)
The closest thing to measured PAR data for the A360X is BRStv’s testing, which reports single-point readings at set depths and intensities rather than a full grid. These figures come from BRStv’s write-ups; we could not open the linked Reef2Reef discussion threads directly (Cloudflare-gated), so we cite BRStv’s own posts and label the deeper-tank numbers as reported rather than independently verified.
| Reading (PAR) | Conditions | Source |
|---|---|---|
| ~290 PAR | Narrow reflector, 50% color / 50% intensity, at the sensor position tested | BRStv A360X narrow reflector |
| ~611 PAR | Narrow reflector, 100% intensity, same position | BRStv A360X narrow reflector |
| 100–180 PAR at 12 in depth; 25–50 PAR at 24 in depth | Reflector, 100% intensity | BRStv A360X narrow reflector |
| 80–100 PAR at 12 in depth; 10–30 PAR at 24 in depth | Reflector, 40% intensity | BRStv A360X narrow reflector |
Sources
- Manufacturer specs (Kessil A360X Tuna Blue): https://kessil.com/products/saltwater_A360X.php
- Setup guidance and PAR ranges (BRS A360X FAQ): https://www.bulkreefsupply.com/content/post/kessil-a360x-tuna-blue-top-faq
- Third-party bench readings (BRStv narrow reflector investigation): https://www.bulkreefsupply.com/content/post/brstv-investigates-kessil-a360x-narrow-reflector
Notes
The A360X is a single-point pendant, so a grid map is arguably less meaningful than it is for a panel — intensity falls off with depth and radius from one hot center rather than across a rectangular canopy. The practical read: a bare A360X delivers LPS-grade light (75–150 PAR) over about 24 × 24 in from an 8 in mount, and the Narrow Angle Reflector is what pushes it into SPS territory deeper in the tank (roughly 100–180 PAR at 12 in, 25–50 PAR at 24 in, at full intensity). Because Kessil publishes no grid and the reflector changes the numbers so sharply, anyone dialling in coral placement has to meter their own tank rather than trust a spec — which is the gap a phone-based estimate is meant to narrow.