Should a Facade Use 40mm SPI Pixel Points? Check Sightlines Before Fixing Pitch
If a facade needs visible dots from more than one direction, the L-C-409-3535 page identifies a 40mm, 360-degree-view SPI point light. Test the intended sightlines and pitch first. Do not freeze power or outdoor use while W/point and the selected IP version remain unconfirmed.
30-second answer
- For whom: Designers and integrators setting facade pitch, viewing directions and pixel quantity.
- Published direction: The page lists a 40mm point, nine RGB 3535 LEDs, DC24V, SPI, steel-wire leads and a 360-degree viewing angle.
- Stop gate: Power per point and protection are placeholders. Do not size supplies/cables or claim outdoor suitability until the exact SKU is confirmed.
Send the elevation, front/oblique sightlines and target pitch to request a sample layout and the data needed for a reliable quote.
Start with where people will see the dots
The page lists a 360-degree viewing angle, so review more than the straight-on elevation. Entrances, oblique road views and nearby pedestrians can reveal different spacing and brightness rhythm.
Mark the main viewpoints and distances, then inspect a sample head-on, obliquely and up close. If the front view works but corner transitions look broken, revise the layout before adding control effects.
Product size, pitch and points per metre are different fields
The name includes 40mm, but that does not establish recommended center pitch or points per metre. Nine RGB 3535 LEDs describe the node; SPI does not define controller grouping or system capacity by itself.
On the quote drawing, separate housing/mounting dimensions, center pitch, rows/columns, segment lengths and lead exits. Ask for the deliverable SKU, pitch guidance, control grouping and wiring before freezing the BOM.
Use a grid to count points; do not infer power without W/point
Pitch changes quantity. For an illustrative 1m × 1m square grid at 100mm centers, including both endpoints, each axis has 1000/100+1=11 positions: 121 points total. This is geometry only.
The page leaves power per point blank, so published data cannot yield total watts or current. Once the exact SKU's W/point is confirmed, calculate load and request branch, injection-point and voltage-drop checks.
Return the SPI address and data-wiring plan
The page confirms SPI but does not state controller model, physical grouping per address, maximum data distance or pinout. Do not assume that one visible node equals one independent address.
Share controller/software, desired animation groups, node count per run and routing. Request data direction, wiring definition, group schedule and controller list. Test addressing and corners with the real controller before bulk order.
Turn pitch into a sample count, not an unsupported power estimate
Buying implication: make a point schedule from the drawing and build a full-scale sample section. Because W/point and IP are not published, do not size power/cable or claim outdoor fit until those fields are tied to the exact SKU.
Geometry assumes an even square grid with edge points at both endpoints. Facade boundaries, obstructions, viewing distance and desired visual density may change the layout; 100mm is not a product recommendation.
Illustration: 1m × 1m area, 100mm centers, with points at both edges. Count only; this is not a spacing recommendation.
-
1000mm ÷ 100mm
Positions per axis
10 intervals + 1Total points
11 -
Horizontal × vertical
Positions per axis
11 × 11Total points
121 points -
Quote impact
Positions per axis
Count points firstTotal points
Electrical load waits for W/point
Decision matrix
| When this fits | Choose this direction |
|---|---|
| Long-distance frontal view | Test pitch and separation before fixing the grid. |
| Near or multi-direction viewing | Inspect sample from sides, corners and close range. |
| Obstructed facade | Schedule visible zones instead of averaging by area. |
| Grouped animation | Confirm SPI address granularity, controller and data wiring. |
| Supply design needed | Obtain W/point and current before load calculations. |
| Outdoor or damp | Confirm IP and connections; otherwise pause this application. |
Put L-C-409-3535 into a testable facade mock-up
Published facts identify a 40mm point, 360-degree view, SPI, nine RGB 3535 LEDs, DC24V and steel-wire leads. That is enough to test dot appearance and layout, but it is not a completed facade or electrical design.
Power per point and protection are not published. Attach sightlines, grid and controller details; request confirmed W/point and IP, wiring/group drawings, BOM, sample and acceptance plan, then include supplies, cable, spares and lead time in the system quote.
| Parameter | Published value |
|---|---|
| Product | 40mm addressable point light |
| Emitters | 9 RGB 3535 LEDs per point |
| Input | DC24V |
| Control | SPI |
| View | 360 degrees |
| Leads | Steel-wire leads |
| Power / protection | Page fields are placeholders; confirm exact SKU |
Treat the installation environment as a quote gate
The product page displays protection as a placeholder. Steel-wire leads identify a lead style, not proof that connectors, split points or mounting details suit outdoor exposure.
For outdoor or damp locations, obtain the exact SKU's IP rating, supporting evidence and connection plan first. Until then, do not place it in an outdoor BOM. Indoor projects still need lead restraint and a replacement plan.
What the quotation should resolve
- 01Exact SKU: 40mm, RGB emitters, DC24V, SPI, plus confirmed W/point and IP.
- 02Layout and wiring: point drawing, pitch, groups, data direction, leads and BOM.
- 03Sample and commercial terms: mock-up, viewing/brightness/address acceptance, full system price, spares and lead time.
Compare system cost only after pitch, W/point, IP and control topology are attached to the same SKU record.
FAQ
Does 360-degree view mean identical output in every direction?
The page states a 360-degree viewing angle but does not quantify uniformity by direction. Check the sample from actual project viewpoints.
Can I calculate total power now?
No. The page's W/point field is blank. Obtain it for the exact SKU, then multiply by point count and request branch and voltage-drop checks.
Copy-ready inquiry
Please quote L-C-409-3535 against the attached elevation and sightlines: target pitch ___, rows/columns and total points ___, run lengths ___, controller/software ___, installation environment ___. Confirm exact SKU, W/point, IP and connections; return layout/wiring/group drawings, BOM, sample and acceptance plan, complete-system price, spares and lead time.
