--- title: "TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA505 - Solar Panel Comparison | ComparePV" description: "Compare TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA505 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd60-la505" updated: 2026-09-11 --- # TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA505 BD60-LA505 leads on the differences that matter The largest is rated power: 55 W more power. 11 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [TCL Zhonghuan HSM-BD54-LA450](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd54-la450) | [TCL Zhonghuan HSM-BD60-LA505](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd60-la505) | | Manufacturer | TCL Zhonghuan | TCL Zhonghuan | | Power | 450 Wp | 505 Wp | | Efficiency | 22.60 % | 22.80 % | | Technology | Back Contact | Back Contact | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | BD54-LA450 | BD60-LA505 | Difference | | --- | --- | --- | --- | | Rated power | 450 Wp | 505 Wp | +55 W for BD60-LA505 | | Open-circuit voltage | 40.94 V | 45.12 V | 4.18 V apart | | Module area | 1.992 m² | 2.216 m² | 0.223 m² apart | | Weight | 21.5 kg | 23.5 kg | -2.0 kg for BD54-LA450 | | Module efficiency | 22.60 % | 22.80 % | +0.20 pp for BD60-LA505 | | Cell count | 108 | 120 | 12 cells apart | | Voltage at max power | 34.50 V | 38.00 V | 3.50 V apart | | Dimensions | 1757x1134x30 mm | 1954x1134x30 mm | 1757x1134x30 mm vs 1954x1134x30 mm | ## Every compared parameter | Parameter | BD54-LA450 | BD60-LA505 | | --- | --- | --- | | Rated power | 450 Wp | 505 Wp | | Module efficiency | 22.60 % | 22.80 % | | Power density | 225.9 Wp/m² | 227.9 Wp/m² | | Open-circuit voltage | 40.94 V | 45.12 V | | Voltage at max power | 34.50 V | 38.00 V | | Short-circuit current | 14.12 A | 14.11 A | | Current at max power | 13.05 A | 13.30 A | | Temperature coefficient | -0.260 %/°C | -0.260 %/°C | | Dimensions | 1757x1134x30 mm | 1954x1134x30 mm | | Module area | 1.992 m² | 2.216 m² | | Weight | 21.5 kg | 23.5 kg | | Weight per kWp | 47.8 kg/kWp | 46.5 kg/kWp | | Product warranty | 25 yrs | 25 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.35 %/yr | 0.35 %/yr | | Cell technology | Back Contact | Back Contact | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 120 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.260 %/°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, BD54-LA450:** 15,216 kWh - **Cumulative output, BD60-LA505:** 17,076 kWh - **Gap:** 1,860 kWh ## Output when hot | Condition | Cell temperature | BD54-LA450 | BD60-LA505 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 450 W | 505 W | 100.0% of rated power | | Cool, bright day | 40 °C | 432 W | 485 W | 96.1% of rated power | | Typical summer roof | 55 °C | 415 W | 466 W | 92.2% of rated power | | Hot roof | 70 °C | 397 W | 446 W | 88.3% of rated power | ## Against the whole database | Measure | BD54-LA450 | BD60-LA505 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,658 | #2,714 | 14,005 | BD60-LA505 leads by 944 places | | Power density | #3,723 | #2,788 | 14,005 | BD60-LA505 leads by 935 places | | Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database | | Weight | #1,891 | #1,199 | 14,005 | BD60-LA505 leads by 692 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #5,945 | #3,916 | 14,005 | BD60-LA505 leads by 2,029 places | ## Questions ### Which panel is better: TCL Zhonghuan HSM-BD54-LA450 or TCL Zhonghuan HSM-BD60-LA505? According to our database: **TCL Zhonghuan HSM-BD60-LA505** has higher module efficiency (**22.80%** vs **22.60%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of TCL Zhonghuan HSM-BD54-LA450 and TCL Zhonghuan HSM-BD60-LA505? **TCL Zhonghuan HSM-BD54-LA450** has a module efficiency of **22.60%**, while **TCL Zhonghuan HSM-BD60-LA505** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does TCL Zhonghuan HSM-BD54-LA450 use vs TCL Zhonghuan HSM-BD60-LA505? **TCL Zhonghuan HSM-BD54-LA450** uses **Back Contact** cells; **TCL Zhonghuan HSM-BD60-LA505** 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 TCL Zhonghuan HSM-BD54-LA450 and TCL Zhonghuan HSM-BD60-LA505? **TCL Zhonghuan HSM-BD54-LA450** has a **30 years** power warranty; **TCL Zhonghuan HSM-BD60-LA505** 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. ## Related comparisons - [TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA520](https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd60-la520) - 11 differences, the largest is module efficiency - [TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA515](https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd60-la515) - 10 differences, the largest is rated power - [TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA510](https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd60-la510) - 9 differences, the largest is rated power - [TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD60-LA500](https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd60-la500) - 7 differences, the largest is rated power - [TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD54-WA475](https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd54-wa475) - 5 differences, the largest is module efficiency - [TCL Zhonghuan HSM-BD54-LA450 vs TCL Zhonghuan HSM-BD54-LA470](https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd54-la470) - 4 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/tcl-zhonghuan-hsm-bd54-la450/tcl-zhonghuan-hsm-bd60-la505 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.