--- title: "Waaree WS-335 335W Solar Panel - Specs & Review | ComparePV" description: "Waaree WS-335 335W solar panel. Specs: 16.82% efficiency, Polycrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/waaree-ws-335" updated: 2026-09-11 --- # Waaree WS-335 Middle of its segment, weak in heat 3,392 panels in the 235-435 W band, all technologies ## Identity - **Manufacturer:** Waaree - **Model:** WS-335 - **Series:** EDO PRO SERIES - **Rated power:** 335 W - **Cell technology:** Polycrystalline ## How it compares Compared against 235-435 W band, all technologies (3392 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 335 W | 400 W | Weak - bottom 17% | | | Module efficiency | 16.82% | 20.46% | Weak - bottom 9% | 13,493 | | Power density | 168.3 | 204.1 | Weak - bottom 9% | 13,489 | | Temperature coefficient | -0.386 | -0.340 | Weak - bottom 8% | 13,485 | | Weight (kg) | 21.5 kg | 21.4 kg | Weak - bottom 18% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 16.82% | 20.46% | Weak - bottom 9% | 13,493 | | Power density | 168.3 | 204.1 | Weak - bottom 9% | 13,489 | | Temperature coefficient | -0.386 | -0.340 | Weak - bottom 8% | 13,485 | | Weight per kWp | 64.2 | 55.3 | Weak - bottom 18% | 12,966 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **-0.386 %/°C temperature coefficient** - Bottom 8% of the 235-435 W band, against a median of -0.340. Ranked 13,485th in the whole database. - **168.3 watts per square metre** - Bottom 9% of the 235-435 W band, against a median of 204.1. Ranked 13,489th in the whole database. - **16.82% module efficiency** - Bottom 9% of the 235-435 W band, against a median of 20.46%. Ranked 13,493rd in the whole database. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 335 W - **Efficiency:** 16.82 % - **Voltage at Pmax (Vmp):** 38.10 V - **Current at Pmax (Imp):** 8.80 A - **Open-circuit voltage (Voc):** 46.80 V - **Short-circuit current (Isc):** 9.30 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.386 %/degC - **Temperature coefficient of Voc:** -0.278 %/degC - **Temperature coefficient of Isc:** 0.051 %/degC - **NOCT:** 46 degC ### Cell and construction - **Cell type:** Polycrystalline - **Cell count:** 72 ### Physical - **Length:** 1985 mm - **Width:** 1003 mm - **Thickness:** 35 mm - **Weight:** 21.5 kg - **Area:** 1.99 m2 - **Power density:** 168.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.7 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.70 % - **Output after 30 years:** 259 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13493 of 14005 | | Power density | 13489 of 14005 | | Temperature coefficient | 13485 of 14005 | | Weight | 12966 of 14005 | | Warranty | 9798 of 14005 | ## About this series The Waaree EDO PRO SERIES is designed for installations where predictable module performance over years and stable yields in variable weather conditions are crucial. Panels feature **glass with an antireflection coating**, which enhances light transmission and helps maintain production even with diffuse radiation. In practice, this means less fluctuation in yields on cloudy days and better utilization of morning and afternoon sunlight. A key advantage of the series is **PID resistance** and the use of durable, **UV-resistant encapsulation**, which minimizes the risk of power degradation over the long term and increases investment security. Additionally, the modules are **current-matched**, making it easier to build strings with balanced parameters and reduce losses due to mismatching. EDO PRO SERIES is suitable for rooftop and ground installations for homes, businesses, and PV farms - especially where resilience to harsh conditions is important, such as salt mist, dust, or hail. ## Notable figures - At 16.8% efficiency, this panel is 5.0pp below the \*\*database\*\* median of 21.8% - 168.3 W/m² power density is 49.8 W/m² below \*\*database\*\* median (218.1 W/m²) - requires larger installation area - At -0.39%/°C, loses 0.09pp more power per degree than \*\*database\*\* median (-0.30%/°C) - Weight of 21.5 kg (5.0 kg below \*\*database\*\* median of 26.5 kg) allows easier transport and roof mounting - #13493 for efficiency, #13485 for temperature performance out of 14005 panels ## Questions ### Is the Waaree EDO PRO SERIES 395W panel still available for purchase? No, the EDO PRO SERIES has been discontinued from Waaree's current production lineup and replaced by newer, higher-power models. Availability is now limited to remaining warehouse stock from distributors holding final production batches. It's worth checking current stock levels and manufacturing date with the seller, since limited ongoing supply can make it harder to source matching modules for future system expansion. ### What warranty comes with Waaree EDO PRO SERIES panels? The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year power performance warranty. This means the panel should still deliver a significant share of its rated output after a quarter century of operation. This is standard for Tier 1 manufacturers and gives investors predictable returns over the system's long-term lifecycle. ### What is PID resistance in EDO PRO SERIES panels and why does it matter? PID (Potential Induced Degradation) is power loss caused by voltage differences between the cells and the frame, worsening in hot, humid climates. EDO PRO SERIES panels are tested for PID resistance and use durable, UV-resistant encapsulation, reducing the risk of sudden output drops after several years of operation. For investors, this means lower risk of unexpected efficiency loss over the system's lifetime. ### What does current-matching in EDO PRO SERIES mean and how does it affect system output? Current matching means sorting panels with similar current values before wiring them into a string. This keeps cells operating under comparable electrical conditions, reducing mismatch losses caused by differences between modules. In practice, this results in higher real-world string yield compared to randomly selected panels, especially in larger utility-scale PV farm installations. ### Is Waaree a Tier 1 manufacturer, and what does that mean for buyers of EDO PRO SERIES? Yes, Waaree Energies is an Indian manufacturer classified as Tier 1 by Bloomberg NEF, confirming financial stability, production capacity, and creditworthiness for lenders financing PV projects. For buyers, this means easier access to project financing, lower risk of the manufacturer going out of business during the warranty period, and greater confidence in the quality control behind EDO PRO SERIES modules. ### Are EDO PRO SERIES panels suitable for harsh environments, such as coastal installations? Yes, the series was designed for resilience against challenging conditions like salt mist, dust, and hail, thanks to durable antireflective-coated glass and resistant encapsulation. This makes the 395W panels suitable for both rooftop and ground-mount installations in coastal or dusty regions, though for very aggressive environments it's worth also verifying the frame's corrosion resistance rating. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/edo-pro-series-ws-320-350-734630e7c0-ae473abb1d48.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [SunLink LNSK-340M](https://comparepv.com/panel/sunlink-lnsk-340m) | 340 W | Cooler, +3.3 pp | | [Canadian Solar CS3K-330P](https://comparepv.com/panel/canadian-solar-cs3k-330p) | 330 W | Cooler, lighter, +3.1 pp | | [Canadian Solar CS3K-335MB-AG](https://comparepv.com/panel/canadian-solar-cs3k-335mb-ag) | 335 W | Cooler, +3.1 pp, +5 yr warranty | | [SunLink LNSK-335M](https://comparepv.com/panel/sunlink-lnsk-335m) | 335 W | Cooler, +3.0 pp | | [Canadian Solar CS3L-365P](https://comparepv.com/panel/canadian-solar-cs3l-365p) | 365 W | +30 W, cooler, +2.9 pp | | [Canadian Solar CS3K-325P](https://comparepv.com/panel/canadian-solar-cs3k-325p) | 325 W | Cooler, lighter, +2.8 pp | | [Canadian Solar CS3L-360P](https://comparepv.com/panel/canadian-solar-cs3l-360p) | 360 W | +25 W, cooler, +2.7 pp | | [SunLink LNSK-330M](https://comparepv.com/panel/sunlink-lnsk-330m) | 330 W | Cooler, +2.7 pp | | [Waaree WS-320](https://comparepv.com/panel/waaree-ws-320) | 320 W | -15 W, -0.8 pp | | [Waaree WS-325](https://comparepv.com/panel/waaree-ws-325) | 325 W | -10 W, -0.5 pp | | [Waaree WS-330](https://comparepv.com/panel/waaree-ws-330) | 330 W | -0.2 pp | | [Waaree WS-340](https://comparepv.com/panel/waaree-ws-340) | 340 W | +0.2 pp | | [Waaree WS-345](https://comparepv.com/panel/waaree-ws-345) | 345 W | +10 W, +0.5 pp | | [Waaree WS-350](https://comparepv.com/panel/waaree-ws-350) | 350 W | +15 W, +0.8 pp | | [Waaree WSM-380](https://comparepv.com/panel/waaree-wsm-380) | 380 W | +45 W, cooler, +2.3 pp | | [Waaree WSM-385](https://comparepv.com/panel/waaree-wsm-385) | 385 W | +50 W, cooler, +2.5 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +140 W, +7.2 pp, +15 yr warranty | --- Source: https://comparepv.com/panel/waaree-ws-335 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.