--- title: "BYD MLTK-36-535 535W Solar Panel - Specs & Review | ComparePV" description: "BYD MLTK-36-535 535W solar panel. Specs: 20.71% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/byd-mltk-36-535" updated: 2026-09-11 --- # BYD MLTK-36-535 Strong in heat, short guarantee 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** BYD - **Model:** MLTK-36-535 - **Series:** AURO MLTK-36 - **Rated power:** 535 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 535 W | 535 W | Typical | | | Module efficiency | 20.71% | 20.90% | Typical | 10,721 | | Power density | 207.1 | 209.0 | Typical | 10,764 | | Temperature coefficient | -0.332 | -0.350 | Strong - top 11% | 8,735 | | Weight (kg) | 27.0 kg | 28.4 kg | Strong - top 20% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.71% | 20.90% | Typical | 10,721 | | Power density | 207.1 | 209.0 | Typical | 10,764 | | Temperature coefficient | -0.332 | -0.350 | Strong - top 11% | 8,735 | | Weight per kWp | 50.5 | 53.0 | Strong - top 20% | 3,844 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Strengths - **-0.332 %/°C temperature coefficient** - Top 11% of the PERC 500-550 W segment, against a median of -0.350. - **50.5 kg per kWp** - Top 20% of the PERC 500-550 W segment, against a median of 53.0. ### Watch out for - **25 year performance warranty** - Bottom 23% of the PERC 500-550 W segment, against a median of 30 yrs. - **Best for:** Commercial, utility-scale, shaded-installations and cold-climate. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 535 W - **Efficiency:** 20.71 % - **Voltage at Pmax (Vmp):** 41.83 V - **Current at Pmax (Imp):** 12.79 A - **Open-circuit voltage (Voc):** 49.42 V - **Short-circuit current (Isc):** 13.49 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.332 %/degC - **Temperature coefficient of Voc:** -0.252 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 27.0 kg - **Area:** 2.58 m2 - **Power density:** 207.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 439 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10721 of 14005 | | Power density | 10764 of 14005 | | Temperature coefficient | 8735 of 14005 | | Weight | 3844 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Max. efficiency of 21.48% — top of segment** - A peak efficiency of 21.48% places the series just behind the JA Solar DEEP BLUE 3.0 (21.5%) and clearly above the ET Solar Elite PLUS (21.4%) and Boviet VEGA (21.3%). This translates to higher energy yield from limited roof space with no price premium for newer N-type technology. - **Favorable temperature coefficient** - The datasheet (v202408A, BYD) specifies a Pmax TC of -0.332%/°C, which outperforms the -0.35%/°C of the JA Solar DEEP BLUE 3.0 in the same segment class. The 0.018 percentage-point difference equates to approximately 0.9 W/kWp less power loss at a typical summer module operating temperature of +75°C. - **Bifacial design — up to 30% rear-side yield gain** - According to the manufacturer's datasheet, the bifacial construction enables up to 30% additional energy harvest from reflected irradiance. This is particularly valuable in ground-mounted systems over high-albedo surfaces (sand, concrete, snow) or rooftops with TPO/PVC membranes. - **Mechanical load rating of 5,400 Pa (front)** - A front-side snow and wind load rating of 5,400 Pa corresponds to approximately 550 kg/m², more than twice the minimum IEC 61215 requirement of 2,400 Pa. The series is recommended for installations in snow load zones III–IV per PN-EN 1991-1-3. - **BNEF Tier-1 manufacturer — investment bankability** - BYD appears on the BNEF Tier 1 list (methodology updated March 2026), satisfying the requirement of having a minimum of 6 projects >10 MW financed by independent commercial banks. This status is critical for securing bank financing or leasing arrangements for commercial and utility-scale installations. ## Cons - **PERC technology instead of N-type TOPCon** - The series is based on p-type PERC cells, which exhibit a higher light-induced degradation (LID) rate compared to N-type TOPCon. The market is shifting en masse toward TOPCon in this power class: for example, the JA Solar DEEP BLUE 4.0 Pro (N-type TOPCon, up to 22.4% efficiency, TC = -0.30%/°C) is entering the same price segment in 2025–2026, offering superior linear degradation performance and lower temperature losses. ## About this series The BYD AURO MLTK-36 series introduces a new level of quality in power density thanks to the use of **p-type cell technology** in the modern M10 format. This solution effectively eliminates the problem of limited installation space, allowing for a significantly higher energy yield from every square meter of the roof. Engineers focused on **minimizing resistive losses** through an advanced multi-busbar system, which translates into more stable module operation even on hot days. Thanks to the precise half-cut design, these panels handle partial shading exceptionally well, which is a key advantage in dense building environments. This series is dedicated to users seeking the highest durability, guaranteed by **outstanding resistance to PID degradation** and a construction that withstands extreme snow loads. Compared to the competition, BYD AURO MLTK-36 stands out for its attention to the optimization of the **internal connection system**, thereby offering an excellent temperature coefficient. It is an ideal choice for investors who value a fast return on investment and a reliable **source of clean energy** for decades, as confirmed by rigorous quality tests. ## Notable figures - Efficiency of 20.7% matches the \*\*PERC 500-550W\*\* median - Power density of 207.1 W/m² matches the \*\*PERC 500-550W\*\* median - Temperature coefficient of -0.33%/°C matches the \*\*PERC 500-550W\*\* median - Weight of 27.0 kg (1.4 kg below \*\*PERC 500-550W\*\* median of 28.4 kg) allows easier transport and roof mounting - Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface ## Questions ### Are the BYD AURO MLTK-36 panels bifacial, and what does that mean in practice? Yes, the BYD AURO MLTK-36 series consists of bifacial modules. This means the rear surface of the panel absorbs light reflected from the ground or mounting surface — such as a light-colored roofing membrane, gravel, or snow. Under favorable conditions, the rear-side gain can reach 20–30% compared to a monofacial module, effectively increasing annual energy yield without requiring additional roof area. ### What warranty does the BYD AURO MLTK-36 series carry? BYD provides a 12-year product warranty on the AURO MLTK-36 series, covering material defects and workmanship. This is complemented by a 25-year linear power output warranty — the manufacturer guarantees that after 25 years of operation the panel will retain at least 84.8% of its nominal power. First-year degradation does not exceed 2%, with a maximum annual degradation of 0.55% in subsequent years. ### Do the BYD AURO MLTK-36 panels perform well under partial shading, for example from a chimney? Yes. The MLTK-36 series employs half-cut cell technology, in which 144 cells are bisected. As a result, shading on part of the module limits losses only in the shaded area rather than across the entire string. In addition, the multi-busbar system minimizes internal resistance, so an installation on a roof with a chimney, dormers, or an antenna performs more efficiently than conventional 72-cell modules would under the same conditions. ### How large and heavy are the BYD AURO MLTK-36 panels — will they fit on a typical gable roof? The BYD AURO MLTK-36 (555 Wp) measures 2278 × 1134 × 35 mm and weighs approximately 27 kg. This is standard for M10-format modules at this power class. On a typical gable roof with a usable surface of 30–40 m², approximately 10–12 modules can be installed, yielding a system in the 5–6 kWp range. Before purchasing, it is advisable to have the installer conduct a roof audit, especially if the roof surface has an irregular shape. ### Does the BYD AURO MLTK-36 series perform well during Polish winters and overcast weather? The MLTK-36 panels operate across a temperature range of −40 °C to +85 °C, so Polish winters pose no risk to the modules whatsoever. PERC technology improves sensitivity to diffuse irradiance, which is characteristic of overcast days. The favorable temperature coefficient of Pmax at −0.332%/°C also means that on hot summer days the module loses less power than older cell designs. ### Is BYD a reliable panel manufacturer, and is the AURO MLTK-36 series still available? BYD (Build Your Dreams) is a Chinese corporation listed on Bloomberg NEF's Tier 1 ranking and one of the world's largest manufacturers of photovoltaic cells and modules. The company holds IEC 61215, IEC 61730, and TÜV certifications, and its products are available in Poland through authorized distributors. The AURO MLTK-36 series is an active product line and remains available for purchase. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/byd-mltk-36-ddaa5d5caa91.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +4.3 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +4.1 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +4.0 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, +3.9 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +3.8 pp, +5 yr warranty | | [BYD NLBK-24-380](https://comparepv.com/panel/byd-nlbk-24-380) | 380 W | -155 W, -6.0 pp, +5 yr warranty | | [BYD NLBK-24-385](https://comparepv.com/panel/byd-nlbk-24-385) | 385 W | -150 W, -5.8 pp, +5 yr warranty | | [BYD NLBK-24-390](https://comparepv.com/panel/byd-nlbk-24-390) | 390 W | -145 W, -5.6 pp, +5 yr warranty | | [BYD NLBK-24-395](https://comparepv.com/panel/byd-nlbk-24-395) | 395 W | -140 W, -5.4 pp, +5 yr warranty | | [BYD NLBK-24-400](https://comparepv.com/panel/byd-nlbk-24-400) | 400 W | -135 W, -5.2 pp, +5 yr warranty | | [BYD MLTK-36 530W](https://comparepv.com/panel/byd-mltk-36-530w) | 530 W | Very close match | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +115 W, cooler, +4.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +105 W, cooler, +4.1 pp | --- Source: https://comparepv.com/panel/byd-mltk-36-535 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.