Introducing Our New BC Custom Solar Panel Series
One back-contact platform, three product lines — flexible ETFE from 0.48W to 50W (any power, any voltage, any shape), rigid glass from 10W to 30W, plus an ultra-thin standard module. Every parameter customizable, no minimum order.
Solar power for the devices big PV forgot
For over a decade we have built solar supplies for products most PV companies never consider — IoT sensors, smart meters, wildlife trackers, battery chargers and outdoor instruments. After months of cell sourcing, lamination trials and reliability testing, we are proud to launch our complete Back-Contact (BC) custom panel series.
No busbar shading
BC cells move all electrodes to the rear, removing the 3–5% front-side shading loss of conventional PERC/TOPCon cells. On a small panel, every square centimetre counts.
Stronger in low light
The uniform back-side field keeps fill-factor decay gentle even below 200 W/m². Cloudy days, dawn, dusk and partial shade — BC keeps charging.
Clean, robust, all-black
Full-black surface for BIPV and consumer devices; back-side welding removes Z-bend ribbon stress and reduces micro-crack risk under daily thermal cycling.
Three product lines, one custom platform
Everything on this page is built on back-contact cells and made to order — pick a power between 0.48W and 50W for ETFE, or 10W–30W for rigid glass, and we build exactly that.
10W–30W BC Glass
- 10 / 15 / 20 / 30 W
- Unified 12V platform
- ~300×152 to ~350×390 mm
- For cameras, monitoring, stations
SQT-BC6950
- 69 × 50 × 3 mm · LONGi HPBC
- 6.0 V / ~0.65 W · ETFE or PET
- FR4 or flexible PCB substrate
Choosing the right BC panel
| Product line | Power range | Vmp | Encapsulation | Form | Temp range | MOQ |
|---|---|---|---|---|---|---|
| BC ETFE — flexible custom | 0.48W – 50W | 5 / 6 / 9 / 12V+ | ETFE / PVF / PET | Flexible, custom shape | -40 ~ +85 °C | 1 pc |
| BC Glass — rigid | 10W – 30W | 12 V | Tempered glass | Rigid | -40 ~ +85 °C | 1 pc |
| SQT-BC6950 | ~0.65 W | 6.0 V | ETFE / PET | FR4 / flex PCB | -20 ~ +65 °C | 1 pc |
The ETFE line ships with ready standard models at 0.48W, 1.8W–5W and 5W–50W — and any custom power in between. Reference dimensions are starting points — send us your enclosure drawings and we will fit the panel to your exact space.
Your spec is our production standard
We are a factory, not a trader. Custom is the default here, not a premium extra.
Power & voltage
Matched to your load or battery chemistry — 5V, 6V, 9V, 12V+.
Size & shape
Rectangles, strips, circles and irregular silhouettes, laser-cut from CAD.
Encapsulation
ETFE, PVF, PET or tempered glass — indoor, outdoor or extreme.
Termination
Pads, wires, JST / PH2.0, IP67 connectors or built-in diodes.
Branding & packing
Logo printing, custom labels, retail packaging, export cartons.
Fast prototyping
5–10 working days for samples; batches scale with matched IV curves.
Every panel is tested before it ships
“BC” on the datasheet is not enough. This is how we prove it in production:
100% EL check
Electroluminescence inspection on every single panel, not spot-checked.
IV curve matching
Every panel measured, cell-to-cell consistency matched within each batch.
Thermal & damp-heat
Thermal cycling and damp-heat verification on every production batch.
Batch test reports available with your order — sent together with the goods.
Built for real devices
Ready to power your product with BC?
Send us your power requirement and enclosure size — we will recommend the right panel and deliver samples fast.
