Custom Back Contact (BC) Solar Module — SQT-BC6950
Ultra-thin 3 mm solar module for IoT sensors, smart locks, wearable devices and miniature power supplies. Built on premium LONGi HPBC back contact cells with no busbar shadow and low-light performance.

Technical Specifications
All parameters customizable — size, voltage, current, substrate and wiring.
| Item | Specification |
|---|---|
| Product Model | SQT-BC6950 |
| Cell Technology | Back Contact (BC) Solar Cell — LONGi HPBC |
| Dimension | 69 × 50 × 3 mm |
| Rated Voltage (Vmpp) | 6.0 V |
| Open Circuit Voltage (Voc) | ≈7.2 V |
| Short Circuit Current (Isc) | ≈110 mA |
| Max Power (Pmax) | ≈0.65 W |
| Encapsulation Material | ETFE / PET Lamination (Optional) |
| Substrate | FR4 / Flexible PCB (Customizable) |
| Operating Temperature | -20℃ ~ +65℃ |
| Storage Temperature | -30℃ ~ +70℃ |
| Weather Resistance | Water-resistant, dustproof |
| Cable / Pads | Copper contact pads (custom wire harness available) |
| Feature | Low light performance, high efficiency, no busbar shadow, ultra-thin 3 mm thickness |
Powered by LONGi BC Cells
Premium LONGi HPBC Cells
World-leading brand for consistent, high-efficiency performance.
No Busbar Shadow
Both electrodes on the rear — higher efficiency per square centimeter.
Ultra-Thin 3 mm
Compact profile for wearables, smart locks and miniature devices.
Applications
Frequently Asked Questions
What is a back contact (BC) solar cell?
Both electrodes are placed on the rear surface, so no front grid blocks sunlight — no busbar shadow and a larger active area. The SQT-BC6950 is built on premium LONGi HPBC back contact cells.
Can size, voltage and power be customized?
Yes. As a custom solar module manufacturer we adjust dimensions, rated voltage, current and power to your exact requirement.
Which encapsulation materials are available?
ETFE, PET and PVF lamination. ETFE offers the best UV and abrasion resistance for long outdoor life; PET is the most cost-effective standard option.
What is the lead time and MOQ?
No minimum order quantity. Samples typically take about 2 weeks; production lead time depends on quantity.
Get a Quote for Your Custom Solar Module
Tell us your target size, voltage and quantity — we will reply with a proposal and sample options.
sales@geningtech.comwww.geningtech.com | +86 182 2180 6471 | Derek Cheng — Sales Director

