300mm boards for modular lightbox backlighting
Build an advertising-lightbox backlight layout around 300 × 75mm rectangular LED boards. Each board has 24 SMD2835 LEDs and is specified at DC 24V, 2.4W and 200–250 lm, with a 120° beam. This listing uses SL-BL007-D020 as the catalogue ordering reference.
For lightbox manufacturers and project sign fabricators, define the board grid and electrical arrangement together. Send the internal enclosure dimensions, face material, required white-light version and quantity so the board layout, joint parts and power-unit requirements can be checked for one project quotation.
Rectangular panel-module specifications
| Specification | SL-BL007-D020 |
|---|
| Catalogue ordering reference | SL-BL007-D020 |
| Board dimensions listed | 75 × 300 × 10 mm; long edge 300 mm |
| LED type / quantity | SMD2835 / 24 |
| Power per board | 2.4W ±10% |
| Current listed | 0.1A ±10% |
| Input specified in parameter table | DC 24V |
| Specified light output | 200–250 lm |
| Beam angle | 120° |
| White-light order range listed | 3000–8000K |
| Joint arrangement illustrated | Metal bridges secured with screws |
| Working temperature listed | −20 to +60°C |
Plan a grid within the enclosure
The 300mm long board provides a rectangular building block for the backlight layout. Mark the usable panel width and height, frame clearances and feed positions on the drawing before finalising the board count. The product photographs show the board faces and terminals as well as an assembled grid.
Match the backlight to the display face
This board is illustrated behind lightbox display faces. Review the enclosure depth, diffuser and printed graphic together with the proposed board spacing. A representative sample panel lets the buyer assess the finished appearance before confirming a production layout.
Order the boards and connection plan together
Specify DC 24V for the board supply configuration shown in the detailed parameter table. Confirm the complete circuit grouping, joint components, feed cables and power unit against the panel drawing. List the number of individual boards separately from the number of finished lightboxes so the quotation covers the correct quantity and assembly scope.
Modular-panel procurement questions
Which measurements are needed for a backlight-panel quotation?
Provide the usable enclosure width and height, box depth, face material and proposed board arrangement. Include SL-BL007-D020, the individual board quantity, required white-light version and destination.
How are boards joined in the illustrated panel?
The grid image shows metal bridges fastened with screws at adjoining terminals. Confirm the joint parts and electrical drawing for the requested arrangement rather than choosing components from board dimensions alone.
Is the 3000–8000K range adjustable on the board?
The range describes white-light order versions. Select the required colour temperature for the project; an adjustable colour-temperature control is not specified for this board.
Can I check a sample layout before ordering volume?
Samples are available. Share the enclosure drawing and face material so the sample configuration can be defined. Sample quantity, cost and shipping are confirmed separately.
What are the wholesale and custom-order terms?
Orders start at 20 pcs, with lower unit prices at larger quantities. Standard lead time is 12–18 days. OEM, ODM and private-label enquiries are supported; custom scope, production schedule and transit time are confirmed for the order.
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