Custom OEM Small Solar Panels (0.1W - 20W)
0.1W - 20W | Any Voltage | Any Shape
Choose Your Production Technology
| Feature | Industrial Series (ETFE) | Consumer Series (PET / Epoxy) |
|---|---|---|
| Technology | ETFE Lamination | PET Lamination / Epoxy Resin |
| Manufacturing Process | High-Temp Vacuum Lamination (Cells fused with ETFE film under heat & pressure) | Glue Dropping (Epoxy) or Lamination (PET)(Liquid resin curing or standard thermal pressing) |
| Durability (Lifespan) | 5 - 7 Years (Marine Grade)(UV & Salt Resistant) | 1 - 3 Years (Standard)(Good for non-permanent outdoor use) |
| Surface Finish | Matte / Honeycomb Texture(Non-stick, self-cleaning) | High Gloss (Epoxy) or Matte (PET)(Crystal clear or smooth finish) |
| Key Benefit | Anti-Yellowing & Crack Resistant(Ideal for harsh environments) | Cost-Effective & High Aesthetics(Best balance of price and look) |
| Best Application | IoT Sensors, Marine Buoys, GPS | Solar Toys, Garden Lights, Education Kits |
| Action | Explore ETFE Modules | Explore PET/Epoxy Modules |
💡 Engineer’s Note: The Difference in Process
Epoxy (Dropping): Produced by manually dropping liquid A+B resin onto the cells. It naturally cures into a “domed” shape. While beautiful, the resin is chemically sensitive to UV rays, which causes the yellowing over time.
Unsure about Voltage or Material?
Don’t guess. Let our engineers recommend the best solution for your device.
Engineer's Guide - Battery & solar Matching
Vmp
| Battery Chemistry | Battery Voltage Range | Required Solar Panel Voltage (Vmp) | Application Example | |
|---|---|---|---|---|
| Ni-MH & Ni-CD | 1.2V ~ 1.4V | > 2.0V (Min 1.8V) | Solar Lawn Lights, Toys | |
| LiFePO4 (LFP) | 3.2V ~ 3.65V | 5.0V (Min 4.0V) | IoT Sensors, Solar Street Lights | |
| Ternary Lithium (Li-ion) | 3.7V ~ 4.2V | 5.5V (Min 5.0V) | Power Banks, GPS Trackers, Cameras | |
| Lead Acid (6V) | 6V ~ 7.2V | 9.0V (Min 8.0V) | Emergency Lights, Gate Openers | |
| Lead Acid (12V) | 12V ~ 14.4V | 18.0V (Min 16.5V) | RV Trickle Charge, Marine Buoys |
Use these standard dimensions to estimate the space required on your product housing.
| Target Power | Reference Dimensions (mm) | Matching Battery | |
|---|---|---|---|
| 0.5W | 70 x 50 mm | 1.2V Ni-MH | |
| 1.0W | 70 x 90 mm | 1.2V Ni-MH | |
| 2.0W | 90 x 160 mm | 3.2V LiFePO4 | |
| 3.0W | 100 x 160 mm | 3.7V Li-ion / 3.2V LFP | |
| 5.0W | 160 x 180 mm | 3.7V Li-ion / 6V Lead Acid | |
| 6.0W | 160 x 225 mm | 3.7V Li-ion | |
| 10W | 160 x 385 mm | 6V Lead Acid / 3.2V LFP | |
| 18W | 320 x 360 mm | 12V Lead Acid |
💡 Engineer’s Note:
Dimensions:Length x Width
Charging Current:
Need precise dimensions for IoT integration? Get the full electrical & mechanical specifications here.
For OEM projects involving drawings, BOMs, or technical specifications, please contact our engineering team directly:
How to Customize Your Panel (4 Steps)
Quick Match Table
| Battery Type | Nominal Voltage | Recommended Solar Panel Vmp | |
|---|---|---|---|
| Ni-MH/ Ni-CD | 1.2V | 2.0V - 2.5V | |
| LiFePO4 | 3.2V | 5.0V - 5.5V | |
| Li-ion/ Polymer | 3.7V | 5.5V - 6.0V | |
| Lead Acid | 6V / 12V | 9V / 18V |
Not sure? Just tell us your battery type, and we will calculate the cell number for you.
- Standard Shapes:
- Custom Shapes:
- Solar Cells:Monocrystalline (21%+ eff)
- Backboard Structure:FR4 (Fiberglass)
- Unlike paper or cardboard, FR4 is rigid, strong, and waterproof, making it safe to solder and easy to mount.
- MOQ:
- Samples: Sample Orders
Why Choose Us
Why ETFE for Small Panels?
Small devices are often deployed in harsh environments. Our ETFE coating ensures the panel won't turn yellow or crack under sun exposure, guaranteeing 5+ years of reliable output for your IoT sensors or outdoor chargers.
Optimized 5V Output
Specifically engineered with the correct number of cells to deliver a stable 5V - 6V voltage. Perfect for directly charging USB devices or integrating with standard Lithium Battery Management Systems (BMS).
Sleek & Durable Integration
Features round corners and a seamless lamination design. Our panels are safe to handle on assembly lines and easy to integrate into consumer electronic products.
Request OEM Quote for IoT/Mini Panels
Fast response within 24 hours. Custom dimensions, voltage, and shape.
Direct Engineering Contact, OEM & custom solar panel projects
FAQ for OEM Small solar panels
Q1: Why do some mini panels turn yellow after a year?
A: This usually happens with Epoxy (Resin) panels because the resin reacts to UV light. If your product is for long-term outdoor use (like a garden light), we strongly recommend choosing our PET or ETFE series, which uses UV-stable lamination technology to prevent yellowing.
Q2: Do I need to pay a mold fee for custom sizes or shapes?
A: In most cases, NO. Unlike plastic injection parts, we use advanced Precision Laser Cutting technology for both the solar cells and the FR4 fiberglass backboard. This allows us to cut any shape (Round, Square, or Irregular) directly from your CAD drawing without expensive hardware molds. You typically only pay for the unit price.
Q3: Can you provide panels with pre-soldered wires and connectors?
A: Yes, absolutely. To speed up your assembly line, we offer full Integration Services. We can deliver panels with:
Custom Wire Length & Gauge: (e.g., 150mm red/black wires).
Connectors: JST (PH2.0, XH2.54), USB, or DC Jacks installed.
Blocking Diodes: To prevent battery backflow at night. Just let us know your spec, and your panels will arrive ready to plug and play.
Q4: Can Sola-E customize the shape and voltage for mini solar panels (0.1W - 20W)?
A: Absolutely. As a specialist mini solar panel factory, we understand that small-scale applications like IoT sensors and wearable electronics require precision. We can customize the dimensions, output voltage (from 0.5V to 18V+), and shape to fit your casing. We offer various encapsulation options, including ETFE, PET, and Epoxy resin, to balance durability and cost for your specific project needs.
Q5: What is the typical application for your 0.1-20W custom solar modules?
A: Our small wattage panels are widely used by global OEM clients for IoT tracking devices, marine environmental sensors, smart garden lights, and portable power banks. If you need a reliable small solar panel manufacturer in China for high-volume supply, Sola-E provides consistent quality with 100% EL testing even for the smallest cells.