--- title: "Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-630 - Solar Panel Comparison | ComparePV" description: "Compare Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-630 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-630" updated: 2026-09-11 --- # Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-630 630 leads on the differences that matter The largest is module efficiency: 0.90 pp more efficient. 13 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Canadian Solar CS6.2-66TB-605](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605) | [Canadian Solar CS6.2-66TB-630](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-630) | | Manufacturer | Canadian Solar | Canadian Solar | | Power | 605 Wp | 630 Wp | | Efficiency | 22.40 % | 23.30 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 605 | 630 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.40 % | 23.30 % | +0.90 pp for 630 | | Power density | 224.0 Wp/m² | 233.2 Wp/m² | +9.3 Wp/m² for 630 | | Rated power | 605 Wp | 630 Wp | +25 W for 630 | | Weight per kWp | 54.2 kg/kWp | 52.1 kg/kWp | -2.2 kg/kWp for 630 | | Open-circuit voltage | 47.80 V | 48.80 V | 1.00 V apart | | Voltage at max power | 40.60 V | 41.60 V | 1.00 V apart | ## Every compared parameter | Parameter | 605 | 630 | | --- | --- | --- | | Rated power | 605 Wp | 630 Wp | | Module efficiency | 22.40 % | 23.30 % | | Power density | 224.0 Wp/m² | 233.2 Wp/m² | | Open-circuit voltage | 47.80 V | 48.80 V | | Voltage at max power | 40.60 V | 41.60 V | | Short-circuit current | 15.91 A | 16.20 A | | Current at max power | 14.91 A | 15.16 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2382x1134x30 mm | 2382x1134x30 mm | | Module area | 2.701 m² | 2.701 m² | | Weight | 32.8 kg | 32.8 kg | | Weight per kWp | 54.2 kg/kWp | 52.1 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 | 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, 605:** 20,299 kWh - **Cumulative output, 630:** 21,138 kWh - **Gap:** 839 kWh ## Output when hot | Condition | Cell temperature | 605 | 630 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 605 W | 630 W | 100.0% of rated power | | Cool, bright day | 40 °C | 579 W | 603 W | 95.7% of rated power | | Typical summer roof | 55 °C | 552 W | 575 W | 91.3% of rated power | | Hot roof | 70 °C | 526 W | 548 W | 87.0% of rated power | ## Against the whole database | Measure | 605 | 630 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,774 | #1,017 | 14,005 | 630 leads by 3,757 places | | Power density | #4,780 | #1,003 | 14,005 | 630 leads by 3,777 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #8,441 | #5,505 | 14,005 | 630 leads by 2,936 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #3,690 | #1,962 | 14,005 | 630 leads by 1,728 places | ## Questions ### Which panel is better: Canadian Solar CS6.2-66TB-605 or Canadian Solar CS6.2-66TB-630? According to our database: **Canadian Solar CS6.2-66TB-630** has higher module efficiency (**23.30%** vs **22.40%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Canadian Solar CS6.2-66TB-605 and Canadian Solar CS6.2-66TB-630? **Canadian Solar CS6.2-66TB-605** has a module efficiency of **22.40%**, while **Canadian Solar CS6.2-66TB-630** is **23.30%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Canadian Solar CS6.2-66TB-605 use vs Canadian Solar CS6.2-66TB-630? **Canadian Solar CS6.2-66TB-605** uses **TOPCon** cells; **Canadian Solar CS6.2-66TB-630** 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 Canadian Solar CS6.2-66TB-605 and Canadian Solar CS6.2-66TB-630? **Canadian Solar CS6.2-66TB-605** has a **30 years** power warranty; **Canadian Solar CS6.2-66TB-630** 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 Canadian Solar CS6.2-66TB-605 and Canadian Solar CS6.2-66TB-630 bifacial panels? Both **Canadian Solar CS6.2-66TB-605** and **Canadian Solar CS6.2-66TB-630** 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 - [Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-625](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-625) - 3 differences, the largest is module efficiency - [Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-620](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620) - 3 differences, the largest is module efficiency - [Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-615](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-615) - 3 differences, the largest is module efficiency - [Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-610](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-610) - One difference: module efficiency - [Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS6.2-66TB-600](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-600) - One difference: module efficiency - [Canadian Solar CS6.2-66TB-605 vs Canadian Solar CS7N-730TB-AG](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs7n-730tb-ag) - 10 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-630 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.