--- title: "Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-635NEG19RC.20 - Solar Panel Comparison | ComparePV" description: "Compare Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-635NEG19RC.20 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-tsm-635neg19rc-20" updated: 2026-09-11 --- # Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-635NEG19RC.20 NEG19R.20-630 leads on the differences that matter The largest is weight: 3.0 kg lighter. 11 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Trina Solar TSM-NEG19R.20-630](https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg19r-20-630-1) | [Trina Solar TSM-635NEG19RC.20](https://comparepv.com/panel/trina-solar-tsm-635neg19rc-20) | | Manufacturer | Trina Solar | Trina Solar | | Power | 630 Wp | 635 Wp | | Efficiency | 23.30 % | 23.50 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | NEG19R.20-630 | 635NEG19RC.20 | Difference | | --- | --- | --- | --- | | Weight | 30.0 kg | 33.0 kg | -3.0 kg for NEG19R.20-630 | | Weight per kWp | 47.6 kg/kWp | 52.0 kg/kWp | -4.3 kg/kWp for NEG19R.20-630 | | Module efficiency | 23.30 % | 23.50 % | +0.20 pp for 635NEG19RC.20 | | Bifacial | No | Yes | No vs Yes | | Open-circuit voltage | 50.20 V | 49.10 V | 1.10 V apart | | Short-circuit current | 15.93 A | 16.44 A | 0.51 A apart | | Voltage at max power | 42.00 V | 40.84 V | 1.16 V apart | | Current at max power | 15.01 A | 15.55 A | 0.54 A apart | ## Every compared parameter | Parameter | NEG19R.20-630 | 635NEG19RC.20 | | --- | --- | --- | | Rated power | 630 Wp | 635 Wp | | Module efficiency | 23.30 % | 23.50 % | | Power density | 233.2 Wp/m² | 235.1 Wp/m² | | Open-circuit voltage | 50.20 V | 49.10 V | | Voltage at max power | 42.00 V | 40.84 V | | Short-circuit current | 15.93 A | 16.44 A | | Current at max power | 15.01 A | 15.55 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2382x1134x30 mm | 2382x1134x30 mm | | Module area | 2.701 m² | 2.701 m² | | Weight | 30.0 kg | 33.0 kg | | Weight per kWp | 47.6 kg/kWp | 52.0 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | No | 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, NEG19R.20-630:** 21,138 kWh - **Cumulative output, 635NEG19RC.20:** 21,306 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | NEG19R.20-630 | 635NEG19RC.20 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 630 W | 635 W | 100.0% of rated power | | Cool, bright day | 40 °C | 603 W | 607 W | 95.7% of rated power | | Typical summer roof | 55 °C | 575 W | 580 W | 91.3% of rated power | | Hot roof | 70 °C | 548 W | 552 W | 87.0% of rated power | ## Against the whole database | Measure | NEG19R.20-630 | 635NEG19RC.20 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,017 | #716 | 14,005 | 635NEG19RC.20 leads by 301 places | | Power density | #1,003 | #741 | 14,005 | 635NEG19RC.20 leads by 262 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #1,771 | #5,408 | 14,005 | NEG19R.20-630 leads by 3,637 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #1,931 | #1,750 | 14,005 | 635NEG19RC.20 leads by 181 places | ## Questions ### Which panel is better: Trina Solar TSM-NEG19R.20-630 or Trina Solar TSM-635NEG19RC.20? According to our database: **Trina Solar TSM-635NEG19RC.20** has higher module efficiency (**23.50%** vs **23.30%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Trina Solar TSM-NEG19R.20-630 and Trina Solar TSM-635NEG19RC.20? **Trina Solar TSM-NEG19R.20-630** has a module efficiency of **23.30%**, while **Trina Solar TSM-635NEG19RC.20** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Trina Solar TSM-NEG19R.20-630 use vs Trina Solar TSM-635NEG19RC.20? **Trina Solar TSM-NEG19R.20-630** uses **TOPCon** cells; **Trina Solar TSM-635NEG19RC.20** uses **TOPCon**. 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 Trina Solar TSM-NEG19R.20-630 and Trina Solar TSM-635NEG19RC.20? **Trina Solar TSM-NEG19R.20-630** has a **30 years** power warranty; **Trina Solar TSM-635NEG19RC.20** 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 Trina Solar TSM-NEG19R.20-630 and Trina Solar TSM-635NEG19RC.20 bifacial panels? **Trina Solar TSM-635NEG19RC.20** is bifacial (captures light from both faces); **Trina Solar TSM-NEG19R.20-630** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-NEG19RC.20-650](https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-co-ltd-tsm-neg19rc-20-650) - 8 differences, the largest is module efficiency - [Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-NEG19RC.20-645](https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-co-ltd-tsm-neg19rc-20-645) - 8 differences, the largest is module efficiency - [Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-NED19RC.20](https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-tsm-ned19rc-20) - 8 differences, the largest is module efficiency - [Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-NEG19RC.20-640](https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-co-ltd-tsm-neg19rc-20-640) - 8 differences, the largest is module efficiency - [Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-NEG19RC.20-635](https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-co-ltd-tsm-neg19rc-20-635) - 8 differences, the largest is weight - [Trina Solar TSM-NEG19R.20-630 vs Trina Solar TSM-NEG19R.20-635](https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-co-ltd-tsm-neg19r-20-635) - One difference: module efficiency --- Source: https://comparepv.com/compare/trina-solar-co-ltd-tsm-neg19r-20-630-1/trina-solar-tsm-635neg19rc-20 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.