Comparison · Power supplies
PTA-120W-12V or RPS-120-27 Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.
In brief: Based on review measurements: Ripple: PTA-120W-12V (40 mV vs. 75); Efficiency: RPS-120-27 (90 % vs. 81).
Model PTA-120W-12V 2025 Read review → RPS-120-27 Mean Well · 2018 Read review → Voltage, V 12 27 Power, W 120 121.5 Ripple, mV 40 75 Efficiency, % 81 90 Review conclusion With reservations With reservations
Only in one review: Current 4.5 A (RPS-120-27); In test 135 W (RPS-120-27); Temperature rise 92 °C (PTA-120W-12V).
PTA-120W-12V: A budget PSU with good high-frequency ripple and power headroom, but noticeable low-frequency ripple.
RPS-120-27: Well built and handles the load reliably, but it buzzes noticeably, has high ripple, and is difficult to repair.
Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.
Compare two models Category… Power supplies Converters Chargers Batteries Battery packs and power banks Electronic loads Measuring instruments Tools Model… 3A-064WU12 5 V, 1 A power supply 5 V, 2 A power supply 5 V, 2 A power supply 5 V, 2 A power supply with microUSB plug 5 V, 3 W power supply 5 V, 7.2 A, 36 W power supply 5 V 0.85 A power supply 5 V 2 A power supply 5 V 2 A power supply 5 V 2 A power supply 5 V 2 A power supply 5 V 10 W power supply 5 V 25 W power supply 5 V 40 W power supply 5 V 100 W power supply 5 V 150 W power supply 5 V 200 W active power supply 5 V 200 W passive power supply 5 V 200 W power supply 5 V 500 mA power supply 5 V 500 mA power supply 5 V and 12 V dual-voltage power supply 5.2 V 2 A power supply 12 V, 1 W power supply 12 V 1 A power supply 12 V 1 A power supply 12 V 1 A Power Supply 12 V 1 A power supply 12 V 2 A power supply 12 V 3 A power supply 12 V 3 A power supply (adapter) 12 V 3 A power supply (desktop) 12 V 3 A power supply for access control systems 12 V 4 A power supply (adapter) 12 V 4 A power supply (desktop) 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A power supply 12 V 6 A power supply 12 V 6–8 A power supply 12 V 8 A power supply 12 V 10 A power supply 12 V 10 W power supply 12 V 20 A (240 W) power supply 12 V 20 A power supply 12 V 24 W power supply 12 V 30 A 360 W power supply 12 V 33 A 400 W power supply 12 V 36 W power supply 12 V 36 W power supply 12 V 40 W power supply 12 V 50 A power supply 12 V 50 W power supply 12 V 50 W power supply 12 V 60 W power supply 12 V 60 W power supply 12 V 60 W power supply 12 V 72 W power supply 12 V 75 W power supply 12 V 100 W 12 V 100 W power supply 12 V 100 W power supply 12 V 100 W power supply 12 V 120 W power supply 12 V 150 W 12.5 A 12 V 150 W power supply 12 V 150 W power supply 12 V 180 W power supply 12 V 200 W, 16.7 A 12 V 200 W power supply 12 V 200 W power supply 12 V 250 W power supply 12 V 300 W power supply 12 V 350 W power supply 12V-10A board (claimed) 15 V 1.5 A power supply based on the TOP246 19 V 3.42 A power supply 24 V, 4 A power supply 24 V, 4.8 W power supply 24 V, 5 A power supply 24 V, 100 W power supply 24 V, 100 W transformer 24 V, 300 W, 12.5 A 24 V 2 A power supply 24 V 2 A power supply (adapter, budget version) 24 V 2 A power supply (adapter, first model) 24 V 2 A power supply (desktop) 24 V 2.5 A power supply 24 V 3 A power supply 24 V 3 A power supply 24 V 6 A power supply from Geekcreit 24 V 8–10 A power supply 24 V 10 A power supply 24 V 10 A power supply 24 V 16.7 A 400 W power supply with 0–10 V control 24 V 60 W power supply (DIY) 24 V 72 W power supply 24 V power supply 36 V, 10 A, 360 W power supply 36 W 3 A adapter 36 W 3 A desktop power supply 36 W desktop power supply, 12 V 3 A 48 V, 2.1 A, 100 W (standard model) 48 V, 2.1 A, 100 W (track) 48 V, 4.1 A, 200 W (standard model) 48 V, 5 A, 240 W power supply 48 V, 8.3 A, 400 W (standard model) 48 V, 200 W (track) 48 V 1 A power supply 48 V 2.5 A power supply 48 V 8.3 A power supply 48 V power supply, about 300 W 50 V 2.5 A power supply 60 V 5 A power supply 60 V 300 W power supply 60W-12V, IP67 68 V 600 W power supply 68 V 800 W power supply 72 W 6 A desktop power supply 100 W 12 V 8.3 A power supply, perforated case 100 W 12 V 8.3 A power supply, sealed case 100 W 12 V 8.3 A power supply, sealed case with enhanced reliability 100 W power supply 100 W power supply, 12 V 8.3 A, metal case 100 W sealed power supply, 12 V 8.3 A 120 W 10 A desktop power supply 120 W power supply 500 W Switching Power Supply for Audio Amplifiers 1203 1204 1205 1206 1207 1208 1500 W 68 V power supply AC-DC2416 AD-12-1A AD-12-2A AD-12-3A AD-12-4A Astec AA24450L BBP-30 Beelink BT7 power supply, 12 V 2 A BP60A-S BP120B-D9-24C C400 power supply for RK6006 CPS-6011 CTG-60W-12V CTG-150W-12V CTG-200W-12V CTG-300W-12V DIY 12 V 5 W power supply DPS-460EB A Enclosed power supply, 10 A EPP-100-12 ESCAM QD410 power supply FSA-12V 100W GFA20A-12 GOPHERT CPS-3205 Gospower G0966A-540-0278 HCA-48 HCA-60 HCA-72 HCF-18L HCF-24L HCF-36-12 HCF-36L HCF-36R HCF-48L HCF-60-12 HCF-60L HCF-60R HCF-100 HCF-100-12 HCF-100L HCF-150-12 HCF-200-12 HCF-250-12 HCF-320-12 HCF-320-24 HDR-15-24 HDR-60-12 HLK-PM12 LF-CBB24-2A Linear power supply, 1–1.2 A, up to 25 V LRC-60, IP20 version LRC-60, IP66 version LRC-60-1050 LRC-60-1400 LRS-200-12 LRS-350-12 (first unit) LRS-350-12 (second unit) LRS-350-12 (third unit) LS-60W-24V LS-100W-24V LS-200W-24V LS-300W-12V LS-300W-24V LS-400W-12V LS-400W-24V Mean Well 25 W driver Meanwell AD-55A MeanWell EPP-500-54 Mean Well EPS-65S-24 Mean Well HDR-100-12N Mean Well IRM-60-24ST Meanwell LRS-50-12 MeanWell LRS-100-48 Meanwell LRS-150-12 MeanWell LRS-200-12 Meanwell LRS-350-24 MeanWell LRS-350-48 Meanwell NET-35C (presumably) MeanWell PSC-160A-C MeanWell PSC-160A-C MeanWell SDR-120-24 MeanWell SP-320-5 MN-100W12V MN-400-12 MP-U200S48 NVVV S-800-70 ORICO 12 V 6.5 A power supply Panasonic air conditioner board power supply PLF12A-12 PLF12A-15 Power supply Power supply for the FL-4H-LCD-D Power supply included with the Pocket P1 PS-220/24-1,5 PSU60B (first power supply) PSU60B (second power supply) PTA-120W-12V PTA-150W-12V PTA-200W-12V PTA-250W-12V PTA-360W-12V PTA-600W-12V (500 W, 40 A) PTA-600W-12V (600 W) QS-18-12 QS-36-12 QS-48-12 QS-60-12 QS-72-12 Raxfly charger (power supply), 5 V with a claimed current of 7.2 A RPS-120-27 S-120-24 S-180-12 S-200-5 S-240-12 S-360-36 S-480-24 Sanmim 12 V 40 W power supply SANMIM GFA15A-5 Sanmim GPA50A-12 Sanmim GPN30E-15 SANMIM GPT70A-12 Sanmim SM-GPA40B Sanmim SM-PLG06A, 15 V version SCP-35-12 Sealed 36 W 3 A power supply Sealed 100 W 8.3 A power supply SVEN SB-550 power supply TMP-30124C Ultra-compact 100 W power supply, 12 V 8.3 A UM-U120S Uninterruptible power supply for access control systems Waterproof, enclosed, 100 W 8.3 A WX-DC2416 WX-DC2440 XK-1205DC (12 V version) XY1205 YS-65SCB YS-U50SL or Model… 3A-064WU12 5 V, 1 A power supply 5 V, 2 A power supply 5 V, 2 A power supply 5 V, 2 A power supply with microUSB plug 5 V, 3 W power supply 5 V, 7.2 A, 36 W power supply 5 V 0.85 A power supply 5 V 2 A power supply 5 V 2 A power supply 5 V 2 A power supply 5 V 2 A power supply 5 V 10 W power supply 5 V 25 W power supply 5 V 40 W power supply 5 V 100 W power supply 5 V 150 W power supply 5 V 200 W active power supply 5 V 200 W passive power supply 5 V 200 W power supply 5 V 500 mA power supply 5 V 500 mA power supply 5 V and 12 V dual-voltage power supply 5.2 V 2 A power supply 12 V, 1 W power supply 12 V 1 A power supply 12 V 1 A power supply 12 V 1 A Power Supply 12 V 1 A power supply 12 V 2 A power supply 12 V 3 A power supply 12 V 3 A power supply (adapter) 12 V 3 A power supply (desktop) 12 V 3 A power supply for access control systems 12 V 4 A power supply (adapter) 12 V 4 A power supply (desktop) 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A power supply 12 V 6 A power supply 12 V 6–8 A power supply 12 V 8 A power supply 12 V 10 A power supply 12 V 10 W power supply 12 V 20 A (240 W) power supply 12 V 20 A power supply 12 V 24 W power supply 12 V 30 A 360 W power supply 12 V 33 A 400 W power supply 12 V 36 W power supply 12 V 36 W power supply 12 V 40 W power supply 12 V 50 A power supply 12 V 50 W power supply 12 V 50 W power supply 12 V 60 W power supply 12 V 60 W power supply 12 V 60 W power supply 12 V 72 W power supply 12 V 75 W power supply 12 V 100 W 12 V 100 W power supply 12 V 100 W power supply 12 V 100 W power supply 12 V 120 W power supply 12 V 150 W 12.5 A 12 V 150 W power supply 12 V 150 W power supply 12 V 180 W power supply 12 V 200 W, 16.7 A 12 V 200 W power supply 12 V 200 W power supply 12 V 250 W power supply 12 V 300 W power supply 12 V 350 W power supply 12V-10A board (claimed) 15 V 1.5 A power supply based on the TOP246 19 V 3.42 A power supply 24 V, 4 A power supply 24 V, 4.8 W power supply 24 V, 5 A power supply 24 V, 100 W power supply 24 V, 100 W transformer 24 V, 300 W, 12.5 A 24 V 2 A power supply 24 V 2 A power supply (adapter, budget version) 24 V 2 A power supply (adapter, first model) 24 V 2 A power supply (desktop) 24 V 2.5 A power supply 24 V 3 A power supply 24 V 3 A power supply 24 V 6 A power supply from Geekcreit 24 V 8–10 A power supply 24 V 10 A power supply 24 V 10 A power supply 24 V 16.7 A 400 W power supply with 0–10 V control 24 V 60 W power supply (DIY) 24 V 72 W power supply 24 V power supply 36 V, 10 A, 360 W power supply 36 W 3 A adapter 36 W 3 A desktop power supply 36 W desktop power supply, 12 V 3 A 48 V, 2.1 A, 100 W (standard model) 48 V, 2.1 A, 100 W (track) 48 V, 4.1 A, 200 W (standard model) 48 V, 5 A, 240 W power supply 48 V, 8.3 A, 400 W (standard model) 48 V, 200 W (track) 48 V 1 A power supply 48 V 2.5 A power supply 48 V 8.3 A power supply 48 V power supply, about 300 W 50 V 2.5 A power supply 60 V 5 A power supply 60 V 300 W power supply 60W-12V, IP67 68 V 600 W power supply 68 V 800 W power supply 72 W 6 A desktop power supply 100 W 12 V 8.3 A power supply, perforated case 100 W 12 V 8.3 A power supply, sealed case 100 W 12 V 8.3 A power supply, sealed case with enhanced reliability 100 W power supply 100 W power supply, 12 V 8.3 A, metal case 100 W sealed power supply, 12 V 8.3 A 120 W 10 A desktop power supply 120 W power supply 500 W Switching Power Supply for Audio Amplifiers 1203 1204 1205 1206 1207 1208 1500 W 68 V power supply AC-DC2416 AD-12-1A AD-12-2A AD-12-3A AD-12-4A Astec AA24450L BBP-30 Beelink BT7 power supply, 12 V 2 A BP60A-S BP120B-D9-24C C400 power supply for RK6006 CPS-6011 CTG-60W-12V CTG-150W-12V CTG-200W-12V CTG-300W-12V DIY 12 V 5 W power supply DPS-460EB A Enclosed power supply, 10 A EPP-100-12 ESCAM QD410 power supply FSA-12V 100W GFA20A-12 GOPHERT CPS-3205 Gospower G0966A-540-0278 HCA-48 HCA-60 HCA-72 HCF-18L HCF-24L HCF-36-12 HCF-36L HCF-36R HCF-48L HCF-60-12 HCF-60L HCF-60R HCF-100 HCF-100-12 HCF-100L HCF-150-12 HCF-200-12 HCF-250-12 HCF-320-12 HCF-320-24 HDR-15-24 HDR-60-12 HLK-PM12 LF-CBB24-2A Linear power supply, 1–1.2 A, up to 25 V LRC-60, IP20 version LRC-60, IP66 version LRC-60-1050 LRC-60-1400 LRS-200-12 LRS-350-12 (first unit) LRS-350-12 (second unit) LRS-350-12 (third unit) LS-60W-24V LS-100W-24V LS-200W-24V LS-300W-12V LS-300W-24V LS-400W-12V LS-400W-24V Mean Well 25 W driver Meanwell AD-55A MeanWell EPP-500-54 Mean Well EPS-65S-24 Mean Well HDR-100-12N Mean Well IRM-60-24ST Meanwell LRS-50-12 MeanWell LRS-100-48 Meanwell LRS-150-12 MeanWell LRS-200-12 Meanwell LRS-350-24 MeanWell LRS-350-48 Meanwell NET-35C (presumably) MeanWell PSC-160A-C MeanWell PSC-160A-C MeanWell SDR-120-24 MeanWell SP-320-5 MN-100W12V MN-400-12 MP-U200S48 NVVV S-800-70 ORICO 12 V 6.5 A power supply Panasonic air conditioner board power supply PLF12A-12 PLF12A-15 Power supply Power supply for the FL-4H-LCD-D Power supply included with the Pocket P1 PS-220/24-1,5 PSU60B (first power supply) PSU60B (second power supply) PTA-120W-12V PTA-150W-12V PTA-200W-12V PTA-250W-12V PTA-360W-12V PTA-600W-12V (500 W, 40 A) PTA-600W-12V (600 W) QS-18-12 QS-36-12 QS-48-12 QS-60-12 QS-72-12 Raxfly charger (power supply), 5 V with a claimed current of 7.2 A RPS-120-27 S-120-24 S-180-12 S-200-5 S-240-12 S-360-36 S-480-24 Sanmim 12 V 40 W power supply SANMIM GFA15A-5 Sanmim GPA50A-12 Sanmim GPN30E-15 SANMIM GPT70A-12 Sanmim SM-GPA40B Sanmim SM-PLG06A, 15 V version SCP-35-12 Sealed 36 W 3 A power supply Sealed 100 W 8.3 A power supply SVEN SB-550 power supply TMP-30124C Ultra-compact 100 W power supply, 12 V 8.3 A UM-U120S Uninterruptible power supply for access control systems Waterproof, enclosed, 100 W 8.3 A WX-DC2416 WX-DC2440 XK-1205DC (12 V version) XY1205 YS-65SCB YS-U50SL Compare
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