Three models from the same pitch group
The following values are copied from the named model sheets. They describe these examples, rather than every rental, outdoor or transparent screen.
| Specification | SP3.9 | HH3.91 | TS3 |
|---|---|---|---|
| Published pitch | 3.91 mm | 3.91 mm | 3.91 × 3.91 mm |
| Cabinet / profile face | 500 × 500 or 500 × 1000 mm | 1000 × 1000 mm | 1000 × 1000 mm |
| Published resolution | 128 × 128 or 128 × 256 | 256 × 256 | 256 × 256 |
| Brightness | 600 nits | ≥5500 nits | ≥3000 cd/m² (White Body) |
| Protection | Front IP30 / Rear IP30 | IP66 front and rear | IP20 |
| Maintenance | Front and rear | Front and rear | Rear |
The SP sheet writes both cabinet sizes and their corresponding resolutions. Pair the size with the matching resolution; do not take one dimension from the long cabinet and a resolution from the square one.
SP3.9: choose around the rental build
SP3.9 offers square and long cabinet formats, making cabinet count and wall layout part of the comparison. Its published protection is IP30 on both sides. If the brief is for a weather-exposed rental screen, compare the appropriate SPW model and its own datasheet rather than treating this indoor SP example as outdoor-rated.
For the quotation, describe the assembled dimensions and the planned service access. Cabinet geometry alone does not establish every rigging, curved-build or compatibility option.
HH3.91: choose around the outdoor installation
HH3.91 specifies a larger cabinet grid, IP66 front and rear and a brightness of at least 5500 nits. Those are relevant differences when comparing it with the indoor SP3.9 example. The same published pixel pitch does not remove the need to check mounting, maintenance access and the conditions at the actual location.
Use the selected HH model's power and brightness figures in the project calculations. Do not infer an energy-saving percentage from a series name or substitute a value from a different electrical variant.
TS3: choose around the view through the screen
TS3 adds a different requirement: the sheet states 92% transparency. That matters when the brief includes a view through the display, such as an indoor glass-facing installation. It also specifies IP20 and rear-service access.
Do not choose it as an outdoor replacement for HH3.91 just because it is bright or has the same nominal pitch. Check the transparency, content and light at the proposed position, and compare TS Outdoor separately if the installation requires its outdoor specification.
Which should enter the shortlist?
- For rental work, compare the required cabinet layout and the exact indoor or outdoor variant.
- For an outdoor advertising wall, compare protection, site brightness requirements and maintenance access.
- For a see-through indoor screen, compare transparency and how the content appears against the background.
Send the installation location, screen size, nearest viewer and service arrangement with the enquiry. These facts allow a useful model comparison; the pitch label alone cannot decide it.
Datasheets used in this guide
Examples refer to these named models. Check the agreed document version when specifying an order.