--- title: "IBC Solar Black 445 LS-TA2 vs IBC Solar Transparent 450 LS-TA2 - Solar Panel Comparison | ComparePV" description: "Compare IBC Solar Black 445 LS-TA2 vs IBC Solar Transparent 450 LS-TA2 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-transparent-450-ls-ta2" updated: 2026-09-11 --- # IBC Solar Black 445 LS-TA2 vs IBC Solar Transparent 450 LS-TA2 Transparent 450 LS-TA2 leads on the differences that matter The largest is module efficiency: 0.20 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [IBC Solar Black 445 LS-TA2](https://comparepv.com/panel/ibc-solar-black-445-ls-ta2) | [IBC Solar Transparent 450 LS-TA2](https://comparepv.com/panel/ibc-solar-transparent-450-ls-ta2) | | Manufacturer | IBC Solar | IBC Solar | | Power | 445 Wp | 450 Wp | | Efficiency | 22.30 % | 22.50 % | | Technology | | Back Contact | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | Black 445 LS-TA2 | Transparent 450 LS-TA2 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.30 % | 22.50 % | +0.20 pp for Transparent 450 LS-TA2 | ## Every compared parameter | Parameter | Black 445 LS-TA2 | Transparent 450 LS-TA2 | | --- | --- | --- | | Rated power | 445 Wp | 450 Wp | | Module efficiency | 22.30 % | 22.50 % | | Power density | 222.7 Wp/m² | 225.2 Wp/m² | | Open-circuit voltage | 40.05 V | 40.25 V | | Voltage at max power | 33.71 V | 33.91 V | | Short-circuit current | 14.10 A | 14.17 A | | Current at max power | 13.20 A | 13.27 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1762x1134x30 mm | 1762x1134x30 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 24.5 kg | 24.5 kg | | Weight per kWp | 55.1 kg/kWp | 54.4 kg/kWp | | Product warranty | 25 yrs | 25 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | - | Back Contact | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, Black 445 LS-TA2:** 14,931 kWh - **Cumulative output, Transparent 450 LS-TA2:** 15,098 kWh - **Gap:** 167 kWh ## Output when hot | Condition | Cell temperature | Black 445 LS-TA2 | Transparent 450 LS-TA2 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 445 W | 450 W | 100.0% of rated power | | Cool, bright day | 40 °C | 426 W | 430 W | 95.7% of rated power | | Typical summer roof | 55 °C | 406 W | 411 W | 91.3% of rated power | | Hot roof | 70 °C | 387 W | 391 W | 87.0% of rated power | ## Against the whole database | Measure | Black 445 LS-TA2 | Transparent 450 LS-TA2 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,100 | #4,222 | 14,005 | Transparent 450 LS-TA2 leads by 878 places | | Power density | #5,302 | #4,225 | 14,005 | Transparent 450 LS-TA2 leads by 1,077 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #9,435 | #8,755 | 14,005 | Transparent 450 LS-TA2 leads by 680 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #6,677 | #6,225 | 14,005 | Transparent 450 LS-TA2 leads by 452 places | ## Questions ### Which panel is better: IBC Solar Black 445 LS-TA2 or IBC Solar Transparent 450 LS-TA2? According to our database: **IBC Solar Transparent 450 LS-TA2** has higher module efficiency (**22.50%** vs **22.30%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of IBC Solar Black 445 LS-TA2 and IBC Solar Transparent 450 LS-TA2? **IBC Solar Black 445 LS-TA2** has a module efficiency of **22.30%**, while **IBC Solar Transparent 450 LS-TA2** is **22.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does IBC Solar Black 445 LS-TA2 use vs IBC Solar Transparent 450 LS-TA2? **IBC Solar Black 445 LS-TA2** uses Monocrystalline cells; **IBC Solar Transparent 450 LS-TA2** uses **Back Contact**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on IBC Solar Black 445 LS-TA2 and IBC Solar Transparent 450 LS-TA2? **IBC Solar Black 445 LS-TA2** has a **30 years** power warranty; **IBC Solar Transparent 450 LS-TA2** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are IBC Solar Black 445 LS-TA2 and IBC Solar Transparent 450 LS-TA2 bifacial panels? Both **IBC Solar Black 445 LS-TA2** and **IBC Solar Transparent 450 LS-TA2** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [IBC Solar Black 445 LS-TA2 vs IBC Solar IBC Module Black 455 LS-TA2](https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-ibc-module-black-455-ls-ta2) - 3 differences, the largest is module efficiency - [IBC Solar Black 445 LS-TA2 vs IBC Solar Black 455 LS-TA2](https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-black-455-ls-ta2) - 3 differences, the largest is module efficiency - [IBC Solar Black 445 LS-TA2 vs IBC Solar Transparent 455 LS-TA2](https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-transparent-455-ls-ta2) - 3 differences, the largest is module efficiency - [IBC Solar Black 445 LS-TA2 vs IBC Solar IBC Module Black 450 LS-TA2](https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-ibc-module-black-450-ls-ta2) - One difference: module efficiency - [IBC Solar Black 445 LS-TA2 vs IBC Solar Black 450 LS-TA2](https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-black-450-ls-ta2) - One difference: module efficiency - [IBC Solar Black 445 LS-TA2 vs IBC Solar IBC Module Black 445 LS-TA2](https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-ibc-module-black-445-ls-ta2) - The same specification on paper --- Source: https://comparepv.com/compare/ibc-solar-black-445-ls-ta2/ibc-solar-transparent-450-ls-ta2 Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.