--- title: "Easun Power YH100W-12M 100W Solar Panel - Specs & Review | ComparePV" description: "Easun Power YH100W-12M 100W solar panel. Specs: 19.63% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/easun-power-yh100w-12m" updated: 2026-09-11 --- # Easun Power YH100W-12M Light for its output, weak in heat 223 panels in the 0-200 W band, all technologies ## Identity - **Manufacturer:** Easun Power - **Model:** YH100W-12M - **Series:** FLEXIBLE SOLAR PANEL - **Rated power:** 100 W - **Cell technology:** HJT ## How it compares Compared against 0-200 W band, all technologies (223 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 100 W | 140 W | Weak - bottom 17% | | | Module efficiency | 19.63% | 15.70% | Strong - top 6% | 12,576 | | Power density | 196.3 | 156.3 | Strong - top 4% | 12,575 | | Temperature coefficient | -0.400 | -0.370 | Weak - bottom 10% | 13,674 | | Weight (kg) | 1.9 kg | 11.2 kg | Strong - top 2% | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.63% | 15.70% | Strong - top 6% | 12,576 | | Power density | 196.3 | 156.3 | Strong - top 4% | 12,575 | | Temperature coefficient | -0.400 | -0.370 | Weak - bottom 10% | 13,674 | | Weight per kWp | 18.6 | 72.0 | Strong - top 2% | 66 | | Performance warranty | - | 25 yrs | | | ### Strengths - **18.6 kg per kWp** - Top 2% of the 0-200 W band, against a median of 72.0. Ranked 66th in the whole database. - **196.3 watts per square metre** - Top 4% of the 0-200 W band, against a median of 156.3. Ranked 12,575th in the whole database. - **19.63% module efficiency** - Top 6% of the 0-200 W band, against a median of 15.70%. Ranked 12,576th in the whole database. ### Watch out for - **-0.400 %/°C temperature coefficient** - Bottom 10% of the 0-200 W band, against a median of -0.370. Ranked 13,674th in the whole database. - **Best for:** Off-grid. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 100 W - **Efficiency:** 19.63 % - **Voltage at Pmax (Vmp):** 13.50 V - **Current at Pmax (Imp):** 7.41 A - **Open-circuit voltage (Voc):** 16.37 V - **Short-circuit current (Isc):** 7.93 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.400 %/degC - **Temperature coefficient of Voc:** -0.330 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 24 ### Physical - **Length:** 645 mm - **Width:** 790 mm - **Thickness:** 3 mm - **Weight:** 1.9 kg - **Area:** 0.51 m2 - **Power density:** 196.3 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12576 of 14005 | | Power density | 12575 of 14005 | | Temperature coefficient | 13674 of 14005 | | Weight | 66 of 14005 | | Warranty | 13880 of 14005 | ## Pros - **HJT Technology – Low LID and Superior Thermal Performance** - HJT cells deliver a temperature coefficient of approximately -0.26%/°C, which is more favorable than standard PERC cells at -0.35%/°C. They also minimize both Light-Induced Degradation (LID) and Potential-Induced Degradation (PID) — a critical advantage for flexible panels exposed to intense irradiance on the metal roofs of RVs and boats. - **19.63% Efficiency – Top of the Flexible Panel Segment** - Compared to direct competitors in the same 100 Wp power class, this panel achieves significantly higher efficiency than the Wanze Energy DLXN-M10 (17.0%) and the TPL Solar TPL S-36 (15.67%) — by +2.63 and +3.96 percentage points, respectively. On the constrained roof area of an RV or boat, that translates into meaningfully more energy output from the same footprint. - **ETFE Encapsulant – UV Resistance and Marine Durability** - The ETFE (ethylene tetrafluoroethylene) top layer offers exceptionally high resistance to UV radiation and saltwater exposure, surpassing the cheaper PET alternative used in budget flexible panels. The hydrophobic ETFE surface reduces dirt accumulation and promotes self-cleaning during rainfall. - **Roof-Friendly Installation with No Structural Compromise** - The flexible, frameless construction allows attachment via contact adhesive or grommets, eliminating the need for drilling or heavy racking hardware. A 100 Wp flexible panel typically weighs 1.5–2.5 kg versus 5–7 kg for a rigid framed equivalent — a meaningful difference when working within the payload limits of a boat or a lightweight van build. ## Cons - **Efficiency Trails the Segment Leader** - The JA Solar Monocrystalline36 100 Wp achieves 21.29% efficiency — 1.66 percentage points higher than the Easun at 19.63%. On an identical mounting surface, that gap amounts to roughly 8% less energy output. For space-constrained installations such as an RV rooftop, the difference is noticeable in annual energy yield. - **Easun Power Is Not Ranked Among Tier-1 PV Module Manufacturers** - Easun Power has a well-established track record as an inverter and charge controller manufacturer (operating since 2006), but the brand does not appear in the BNEF Tier-1 PV module rankings or the PVEL PV Module Reliability Scorecard. Flexible panels represent a niche side product for this brand, which raises the risk of limited warranty support and service availability over a 10+ year horizon. - **Shorter Lifespan Than Rigid Framed Panels** - ETFE flexible panels typically deliver 10–20 years of service life with an annual degradation rate of 0.5–0.7%, while rigid glass-faced counterparts maintain performance for 25–30 years at 0.3–0.5%/year. In stationary applications — such as a carport or terrace installation — the Easun FLEXIBLE series cannot match the long-term durability of Tier-1 framed modules. ## About this series The Easun Power FLEXIBLE SOLAR PANEL series is designed for situations where a traditional framed module simply doesn't work - on camper roofs, boats, van bodies, trailers, as well as on lightweight structures and surfaces with a gentle curve. The key advantage is the **flexible, ultra-light construction**, which allows you to mount the panel without affecting the roof's load-bearing capacity and without heavy frames. In practice, you get **faster installation** - the panel can be attached with adhesive or through mounting holes, which reduces the time required and minimizes the risk of leaks. The ETFE protective layer provides **high resistance to UV and marine conditions**, while also making it easy to keep the surface clean. Monocrystalline cells in a modern design support **more stable operation in partially shaded conditions**, typical for areas under railings, luggage compartments, or roof accessories. This is the choice for those who want energy independence on the move and real energy production from a limited space, without compromising on durability. ## Notable figures - Module efficiency of 19.6% is 1.0pp below average for \*\*HJT 0-400W\*\* panels (median: 20.6%) - At 196.2 W/m², this panel generates 10.2 W/m² less per unit area than \*\*HJT 0-400W\*\* median (206.4 W/m²) - At -0.40%/°C, loses 0.14pp more power per degree than \*\*HJT 0-400W\*\* median (-0.26%/°C) - At 1.9 kg, this panel is 19.6 kg lighter than \*\*HJT 0-400W\*\* median (21.5 kg) - easier handling during installation - In the top 90% for efficiency among all HJT panels ## Questions ### Can Easun Power Flexible Solar Panels be adhesively mounted to a camper van roof or boat hull without drilling? Yes, the Easun Power Flexible Solar Panel series is specifically designed for adhesive mounting. The panel can be secured using a specialized marine-grade adhesive sealant (e.g., Sikaflex) or via the factory-integrated mounting eyelets distributed around the panel frame. This approach eliminates the need to drill into the camper roof or boat hull, removing any risk of water ingress and leaks. The ultra-lightweight construction ensures that an adhesive bond provides sufficient holding strength even under road or sea travel conditions. ### What is HJT technology and why did Easun Power choose it for their flexible solar panels? HJT (Heterojunction Technology) is a cell architecture that combines a monocrystalline silicon wafer with thin layers of amorphous silicon on both sides. This structure allows HJT cells to achieve efficiencies in the range of 23–25%, exhibit lower temperature coefficients than conventional cells, and deliver superior performance under low-irradiance conditions. In a 100 W flexible panel format, this translates into meaningfully more energy harvested from the limited roof area of a camper van or van conversion compared to standard mono PERC modules. ### How does the Easun Power Flexible Solar Panel handle partial shading, for example from roof rails or a roof rack? The HJT cells used in this series demonstrate better shade tolerance than conventional PERC cells. When typical roof-mounted obstacles such as rails, antennas, or luggage racks cast partial shadows on the panel, the cell architecture limits the hot-spot effect, preventing disproportionate power losses. Nonetheless, pairing the panel with an MPPT charge controller is strongly recommended, as MPPT dynamically tracks the optimal operating point and recovers additional energy under varying shading conditions. ### Is the ETFE surface layer on the Easun Power Flexible Solar Panel sufficient for marine environments and intense UV exposure? ETFE (ethylene tetrafluoroethylene) is a fluoropolymer with established use in aerospace and marine industries. It provides excellent resistance to UV radiation, salt-laden air, and moisture, outperforming the less expensive PET encapsulant used on entry-level flexible panels. The ETFE surface has a matte, slightly self-cleaning finish that reduces the accumulation of salt deposits and dirt. For boat installations and coastal environments, this represents a significant durability advantage over standard flexible panels that lack an ETFE front layer. ### How much does the Easun Power Flexible Solar Panel 100 W weigh, and can a typical camper van roof support it? Flexible 100 W panels in this class typically weigh between 1.5 and 2.5 kg — several times lighter than a conventional aluminum-framed panel, which generally weighs 9–11 kg. This is a key advantage of the Flexible Solar Panel series: it places virtually no structural load on the camper, trailer, or boat roof and requires no heavy mounting rails or brackets. Even installing multiple panels simultaneously falls well within the typical permissible roof-load ratings of recreational vehicles. ### Is the Easun Power Flexible Solar Panel 100 W compatible with any charge controller? The 100 W HJT panel operates with an open-circuit voltage (Voc) typically in the 22–24 V range, making it fully compatible with standard PWM and MPPT charge controllers designed for 12 V battery systems. However, the manufacturer recommends an MPPT controller, as it more effectively exploits the HJT cell characteristic curve and recovers additional energy during variable shading or overcast conditions. The panel is fitted with MC4 connectors, which are compatible with the wiring ecosystem used by the vast majority of charge controllers available on the market. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/100w-12m-cf127d13d3ed.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Gamko New Energy GKA182M150W](https://comparepv.com/panel/gamko-new-energy-gka182m150w) | 150 W | +50 W, heavier, +3.4 pp | | [Gamko New Energy GKA182M120W](https://comparepv.com/panel/gamko-new-energy-gka182m120w) | 120 W | +20 W, heavier, +3.4 pp | | [Gamko New Energy GKA182M135W](https://comparepv.com/panel/gamko-new-energy-gka182m135w) | 135 W | +35 W, heavier, +3.4 pp | | [Gamko New Energy GKA182M100W](https://comparepv.com/panel/gamko-new-energy-gka182m100w) | 100 W | Heavier, +3.4 pp | | [Gamko New Energy GKA182M110W](https://comparepv.com/panel/gamko-new-energy-gka182m110w) | 110 W | +10 W, heavier, +3.4 pp | | [JA Solar NS-100MH-36](https://comparepv.com/panel/ja-solar-ns-100mh-36) | 100 W | Cooler, heavier, +1.7 pp | | [PolyCrown Solar Tech NS-100MH-36](https://comparepv.com/panel/polycrown-solar-tech-ns-100mh-36) | 100 W | Cooler, heavier, +1.7 pp | | [Renesola YH120W-18M](https://comparepv.com/panel/renesola-yh120w-18m) | 120 W | +20 W, cooler, heavier | | [Isola New Energy YH120W-18M](https://comparepv.com/panel/isola-new-energy-yh120w-18m) | 120 W | +20 W, cooler, heavier | | [Isola New Energy YH110W-18M](https://comparepv.com/panel/isola-new-energy-yh110w-18m) | 110 W | +10 W, cooler, -1.8 pp | | [Isola New Energy YH100W-7M](https://comparepv.com/panel/isola-new-energy-yh100w-7m) | 100 W | Cooler, -1.9 pp | | [Isola New Energy YH105W-18M](https://comparepv.com/panel/isola-new-energy-yh105w-18m) | 105 W | Cooler, -1.9 pp | --- Source: https://comparepv.com/panel/easun-power-yh100w-12m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.