LinkSolar is a China-based B2B supplier of custom & OEM solar panels, solar cells and mounting hardware. We supply mini solar panels built to your application — custom shapes, voltages, and connectors — rather than selling fixed SKUs. Every spec below is a customizable range; final parameters are confirmed per project before production.
MOQ from 5 pcs Samples 7–14 days Production 2–4 weeks Cell back-contact (IBC) option Hangzhou, China · global B2B
01 Customization Range
We don't sell off-the-shelf wattages. These are the parameter envelopes our partner factories can build within — pick what your device needs, confirm with us, we sample.
| Parameter | Customizable range | Most-requested / notes |
|---|---|---|
| Power | 0.11 W → standard module | Real range 0.11 W (35×22 ETFE) – 25 W (MPPT) in stock; larger custom on request |
| Voltage (Vmp) | 3 V – 48 V custom | 5 V / 6 V most common for IoT direct-drive (no DC-DC, saves conversion loss) |
| Multi-voltage switch | 5V / 6V / 9V / 12V | 4 W & 8 W panels support switchable output — one panel fits most trail / security cameras |
| Dimensions | from 35 × 22 mm | Fully custom outline to fit enclosure / housing |
| Encapsulation | ETFE / PET / Glass | See comparison below — chosen by outdoor lifetime requirement |
| Solar cell | Mono / back-contact (IBC) | High-efficiency SunPower-class IBC back-contact cells for max output in a small footprint |
| Output / connector | USB-A · USB-C · JST · solder pads · custom | Specified to your PCB / battery-management input |
| Surface / color | Black / blue / custom | Anti-glare or branding options |
Why a range, not a SKU: industrial IoT, PLM sensors, and OEM devices each have different enclosure, voltage, and lifetime constraints. A fixed catalog forces you to compromise; a custom build matches the panel to the device. The trade-off is a short confirmation + sampling cycle (below) before production.
02 Encapsulation Comparison (choose by outdoor lifetime)
| Type | UV / outdoor durability | Weight | Cost | Best for |
|---|---|---|---|---|
| ETFE | Best UV resistance, longest outdoor life | Light | Highest | Long-deployment PLM / remote sensors |
| PET | Lowest cost; tends to yellow after ~2–3 yrs outdoors | Light | Lowest | Indoor / short-life / cost-sensitive |
| Glass | Most durable long-term | Heavy | Mid | Fixed installs where weight is OK |
Sourcing note For unattended outdoor IoT/PLM deployments we usually recommend ETFE despite the cost — PET yellowing reduces output over a 2–3 year horizon, which matters more than the upfront saving when the device is on a transmission line or remote site.
03 Sample Reference Products available now · sampleable
Real in-stock mini panels for IoT / smart sensors — order as samples for evaluation today (from $9.90, low / no MOQ). Use them as a reference baseline; each is also fully customizable (size / voltage / output / encapsulation) for your device.
| Sample product | Power | Voltage | Size | Encapsulation | From (USD) |
|---|---|---|---|---|---|
| 4 W Multi-Voltage ⭐ best-seller | 4 W | 5 / 6 / 9 / 12 V switchable | — | mono · IP66 · w/ bracket | $42.90 |
| Glass mini (113×113) | 2.3 W | 5.5 V | 113 × 113 mm | tempered glass | $13.90 |
| Glass mini (60×45) | 0.45 W | 3 V | 60 × 45 mm | tempered glass | $9.90 |
| Ring-style mini | 0.33 W | 2.75 V | ring form | matte PET | $9.90 |
| ETFE micro (35×22) | 0.11 W | 5 V | 35 × 22 mm | ETFE | $9.90 |
| ETFE mini (45×45) | 0.18 W | 6 V | 45 × 45 mm | ETFE | $9.90 |
Higher power & other voltages: 8 W, 12 W, and 25 W (MPPT) options are also stocked, plus the full 3–48 V custom range above. The 0.11 W ETFE (35 × 22 mm) is among the smallest we supply — tell us your enclosure and we match the panel to it.
Application fit — starting points mapping the samples above to use cases (all CUSTOMIZABLE, confirmed before production):
| Application | Reference power | Voltage | Encapsulation |
|---|---|---|---|
| Asset / GPS tracker | 0.11–0.45 W | 3 / 5 V | ETFE / glass |
| IoT sensor (LoRa / NB-IoT) | 0.18–2.3 W | 3–6 V direct | ETFE |
| Trail / security camera | 4 W switchable | 5 / 6 / 9 / 12 V | mono · IP66 |
| ESP32 / Arduino weather station | 4–8 W CUSTOM | 5 / 6 V | ETFE |
| Power line monitoring (PLM) | custom CUSTOM | custom (cold-climate sizing) | ETFE |
04 Engineering Notes (from sourcing & field experience)
Charging IC A common failure on small panels: pairing a raw panel with a TP4056 module. The panel's output voltage is unstable under varying light, and the TP4056's default ~1 A charge current can exceed a small panel's supply, pushing the board into repeated under-voltage protection. For solar input, adjust the charge current or use a solar-aware charger IC (e.g. bq24074 class). Specify your charge IC when you send the requirement so we match panel current to it.
Cold-climate sizing Northern winters (2–3 h sun + snow on the panel face) routinely starve devices sized for average conditions. For PLM / trail-camera deployments above mid-latitudes, oversize the panel and confirm the worst-month insolation — we size to worst case, not annual average.
Multi-voltage advantage A 4 W or 8 W switchable panel (5/6/9/12 V) covers most trail and security cameras with one part number, removing voltage-mismatch returns. Useful when you serve several device models from one inventory line.
05 Custom Workflow — specs confirmed before production
01
Spec intake
You send device, voltage, size, output, lifetime
02
Confirm params
We confirm buildable spec + quote (this gate is mandatory before any production)
03
Sample
7–14 day samples to your spec
04
Approve
You validate on your device
05
Production
2–4 weeks, checked before shipment
06
Ship
Global B2B export
Confirmation gate: because every panel is built to spec, nothing goes to production until parameters are confirmed in writing. This protects both sides — you get a panel matched to your device, not a catalog approximation.
06 Sourcing Terms
MOQ
from 5 pcs
low MOQ for prototyping / pilot runs
Samples
7–14 days
to your confirmed spec
Production
2–4 weeks
checked before shipment
Indicative price
from $42.90
4W multi-voltage ref.; final quote per spec
Certification
per project
SunPower-class IBC cell option; target-market certs on request
Export
global B2B
utility OEM / IoT integrator / equipment mfr
Send us your device spec — we'll confirm a buildable panel + quote
Voltage, size, output, deployment environment. Samples in 7–14 days, MOQ from 5 pcs.
Request a custom quote →
LinkSolar · B2B Solar Supplier · Hangzhou, China · [email protected] Capability datasheet · all specs confirmed per project before production · 2026