--- title: "VSUN VSUN540-144BMH-DG 540W Solar Panel - Specs & Review | ComparePV" description: "VSUN VSUN540-144BMH-DG 540W solar panel. Specs: 20.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vsun-vsun540-144bmh-dg" updated: 2026-09-11 --- # VSUN VSUN540-144BMH-DG Strong in heat, heavy for its output 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** VSUN - **Model:** VSUN540-144BMH-DG - **Series:** VSUN 144BMH-DG - **Rated power:** 540 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) | 540 W | 535 W | Typical | | | Module efficiency | 20.90% | 20.90% | Typical | 10,072 | | Power density | 209.0 | 209.0 | Typical | 10,100 | | Temperature coefficient | -0.320 | -0.350 | Strong - top 3% | 8,312 | | Weight (kg) | 32.7 kg | 28.4 kg | Weak - bottom 7% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.90% | 20.90% | Typical | 10,072 | | Power density | 209.0 | 209.0 | Typical | 10,100 | | Temperature coefficient | -0.320 | -0.350 | Strong - top 3% | 8,312 | | Weight per kWp | 60.6 | 53.0 | Weak - bottom 7% | 12,492 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.320 %/°C temperature coefficient** - Top 3% of the PERC 500-550 W segment, against a median of -0.350. Ranked 8,312th in the whole database. ### Watch out for - **60.6 kg per kWp** - Bottom 7% of the PERC 500-550 W segment, against a median of 53.0. Ranked 12,492nd in the whole database. - **Best for:** Commercial, utility-scale and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 540 W - **Efficiency:** 20.90 % - **Voltage at Pmax (Vmp):** 41.65 V - **Current at Pmax (Imp):** 12.97 A - **Open-circuit voltage (Voc):** 49.65 V - **Short-circuit current (Isc):** 13.85 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.320 %/degC - **Temperature coefficient of Voc:** -0.270 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 - **Bifacial:** yes ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 32.7 kg - **Area:** 2.58 m2 - **Power density:** 209.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 459 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10072 of 14005 | | Power density | 10100 of 14005 | | Temperature coefficient | 8312 of 14005 | | Weight | 12492 of 14005 | | Warranty | 21 of 14005 | ## About this series The VSUN 144BMH-DG series consists of advanced modules based on **bifacial technology**, which redefine installation efficiency through the effective use of light reflected from the ground. Thanks to the use of an innovative **Double Glass** construction, these panels demonstrate extraordinary resistance to potential-induced degradation and extreme weather conditions, which directly translates into a significantly longer lifespan for the entire system. The use of 144 **Half-Cut Mono PERC** cells allows for the effective minimization of energy losses resulting from partial shading of rows, which is crucial in the professional design of high-density solar farms. This solution effectively eliminates the problem of rapid efficiency drops in difficult locations, offering investors exceptional stability of energy yields for decades. This series was designed primarily for the commercial sector and large-scale ground-mounted power plants, where maximizing the return on investment depends on every additional kilowatt generated thanks to **high module efficiency**. Compared to standard single-sided solutions, the VSUN 144BMH-DG withstands mechanical loads much better and is characterized by a low temperature coefficient, making it a reliable choice for demanding designers looking for the perfect balance between technological innovation and long-term durability of components. ## Notable figures - At 20.9% efficiency, this panel is on par with typical \*\*PERC 500-550W\*\* modules - At 209.0 W/m² power density, roof space requirements are typical for \*\*PERC 500-550W\*\* panels - At -0.32%/°C (vs median -0.35%/°C), loses ~1% less power in hot conditions - Weight of 32.7 kg is 4.3 kg above \*\*PERC 500-550W\*\* median (28.4 kg) - verify structural support - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof ## Questions ### Is the VSUN 144BMH-DG series still available for purchase? No, the VSUN 144BMH-DG series has been discontinued by the manufacturer and is no longer part of the current product lineup. Availability is now limited to remaining distributor stock. If you're expanding an existing installation built on these panels, it's worth acting quickly since remaining units will keep depleting as stock sells through. ### How does the bifacial technology in the VSUN 144BMH-DG differ from standard monofacial panels? Bifacial VSUN 144BMH-DG panels generate power from both sides of the module, capturing light reflected from the ground, roof, or surrounding surfaces. Thanks to the double glass construction, the rear side of the cells also contributes to energy output, boosting total yield by up to several percentage points compared to standard monofacial panels, especially over bright surfaces like gravel or white roofing. ### What is the maximum power and efficiency of the VSUN 144BMH-DG modules? This series reaches up to 550 Wp of maximum power at a module efficiency of around 21.3%. This is achieved using 144 Half-Cut Mono PERC cells combined with MBB busbar technology, which reduces resistive losses and improves performance under partial shading conditions common in large ground-mounted arrays. ### What warranty applies to the VSUN 144BMH-DG panels? The manufacturer offers a 25-year product warranty covering material and workmanship defects, plus a 30-year power performance warranty with degradation not exceeding 2% in the first year and around 0.45% annually thereafter. Even though this series has been discontinued, warranty terms for already purchased and installed panels remain valid according to the original purchase documentation. ### Is the VSUN 144BMH-DG suited for large ground-mounted solar farms or residential rooftop installations? This series was designed primarily for commercial applications and utility-scale solar farms, where every extra kilowatt from high module efficiency and bifacial gain matters. Its double-glass construction makes it heavier than standard monofacial panels, which should be factored into mounting structure design for pitched residential roofs. ### Do VSUN 144BMH-DG panels handle high temperatures and harsh weather conditions well? Yes, the double-glass construction gives these modules a low temperature coefficient and improved resistance to potential-induced degradation (PID). This design maintains more stable energy output during hot weather and provides greater mechanical durability against snow and wind loads compared to standard single-glass panels. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/661e0d2110f2c-fe87dee9b69d.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.1 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.9 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.9 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.8 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.6 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.6 pp | | [VSUN VSUN535-144MH](https://comparepv.com/panel/vsun-vsun535-144mh) | 535 W | Lighter, -5 yr warranty | | [VSUN VSUN545-144MH](https://comparepv.com/panel/vsun-vsun545-144mh) | 545 W | Lighter, +0.2 pp, -5 yr warranty | | [VSUN VSUN550-144BMH](https://comparepv.com/panel/vsun-vsun550-144bmh) | 550 W | +10 W, lighter, +0.4 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +100 W, cooler, +3.9 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +90 W, cooler, +3.5 pp | --- Source: https://comparepv.com/panel/vsun-vsun540-144bmh-dg 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.