Comparison · Power supplies
12 V 40 W power supply or Sanmim GPA40B 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: Test current: Sanmim GPA40B (5.7 A vs. 3.4); Ripple: Sanmim GPA40B (37 mV vs. 650); Efficiency: Sanmim GPA40B (87 % vs. 84); No load: 12 V 40 W power supply (0.1 W vs. 0.3); Temperature rise: 12 V 40 W power supply (60 °C vs. 93).
Model 12 V 40 W power supply 2025 Read review → Sanmim GPA40B 2020 Read review → Current, A 3.33 3.5 Power, W 40 40 Test current, A 3.4 5.7 Ripple, mV 650 37 Efficiency, % 84 87 No load, W 0.1 0.3 Temperature rise, °C 60 93 Review conclusion Recommended Recommended
Only in one review: Voltage 12 V (Sanmim GPA40B); In test 70 W (Sanmim GPA40B); Under load 12.083 V (Sanmim GPA40B); Protection 5.7 A (Sanmim GPA40B).
12 V 40 W power supply: A decent supply with closely set protection, suitable for LED strips; ripple is high for sensitive devices.
Sanmim GPA40B: It regulates voltage excellently and handles a sustained 150% load, though it costs more than budget models.
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… 2 A power adapter 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 5 V 2 A power supply 5 V 2 A power supply (10 W) 5 V 2 A power supply with microUSB plug 5 V 3 W power supply 5 V 5 A power supply (25 W) 5 V 7.2 A 36 W power supply 5 V 8 A power supply (40 W) 5 V 20 A power supply (100 W) 5 V 30 A power supply (150 W) 5 V 40 A power supply (200 W), active cooling 5 V 40 A power supply (200 W), passive cooling 5 V 200 W power supply 5 V 500 mA power supply 5.2 V 2 A power supply 12 V 1 A power supply 12 V 1 W power supply 12 V 2 A power supply 12 V 3 A desktop power supply 12 V 3 A power supply 12 V 3 A power supply, adapter 12 V 4 A desktop power supply 12 V 4 A power supply, adapter 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A uninterruptible power supply 12 V 5 W power supply (DIY) 12 V 6 A power supply 12 V 6–8 A power supply 12 V 8 A power supply 12 V 8.3 A perforated power supply 12 V 8.3 A sealed power supply, 415 g 12 V 8.3 A sealed power supply, 850 g 12 V 10 A power supply 12 V 10 W 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 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 power supply 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 power supply 12 V 150 W power supply 12 V 150 W power supply 12 V 200 W power supply 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 12 Volt 3 Amp power supply 12 Volt 50 Amp power supply 12 Volt 180 Watt power supply 12 V power supply, about 3 A 12V-10A board 19 V 3.42 A power supply 20-watt LED driver 24 V 2 A desktop power supply 24 V 2 A power supply 24 V 2 A power supply, adapter (budget version) 24 V 2 A power supply, adapter (with filter) 24 V 2.5 A power supply 24 V 3 A power supply 24 V 4 A power supply 24 V 5 A power supply 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 24 V 72 W power supply 24 V 100 W power supply 24 V 100 W transformer 24 V 200 mA power supply 24 V 300 W power supply 24 Volt 3 Amp power supply 24 V power supply 36 W, 12 V 3 A power supply 36 W 3 A adapter 48 V 1 A power supply 48 V 2.1 A, 100 W power supply 48 V 2.5 A power supply 48 V 4.1 A, 200 W power supply 48 V 5 A 240 W power supply 48 V 8.3 A, 400 W power supply 48 V 8.3 A power supply 48 V power supply 50 V 2.5 A power supply 60 V 5 A power supply 60 V 300 W power supply, version two 60W-12V, IP67 68 V 600 W power supply 100 W, 12 V, 8.3 A power supply in metal case 100-watt power supply 120-watt power supply 1203 1204 1205 1206 1207 1208 1500 W 68 V power supply AC-DC2416 BBP-30 C400 power supply CTG-60W-12V CTG-150W-12V CTG-200W-12V CTG-300W-12V Desktop 36 W 3 A Desktop 72 W 6 A Desktop 120 W 10 A DPS-460EB A Dual-voltage power supply Enclosed power supply, 10 A EPP-100-12 ESCAM QD410 supplied power adapter FSA-12V 100W Geekcreit 24 V 6 A power supply GFA20A-12 GOPHERT CPS-3205 GOPHERT CPS-6011 Gospower G0966A-540-0278 HCA-48 HCA-60 HCA-72 HCA-100 HCA-100L HCF-18L HCF-24L HCF-36-12 HCF-36L HCF-36R HCF-48L HCF-60-12 HCF-60L HCF-60R HCF-100-12 HCF-150-12 HCF-200-12 HCF-250-12 HCF-320-12 HCF-320-24 Hi-Link HLK-PM12 LF-CBB24-2A Low-profile 12 V 20 A power supply LRC-60-1050 LRC-60-1400 LRS-350-12 LS-60W-24V LS-100W-24V LS-200W-24V LS-300W-12V LS-300W-24V LS-400W-12V LS-400W-24V Meanwell AD-55A MeanWell EPP-500-54 Mean Well EPS-65S-24 MeanWell HDR-15-24 Mean Well HDR-60-12 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-35A (presumably NET-35C) 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 PLF12A-12 PLF12A-15 PS-220/24-1,5 PSU60B PTA-120W-12V PTA-150W-12V PTA-200W-12V PTA-250W-12V PTA-360W-12V PTA-600W-12V (500 W) PTA-600W-12V (600 W) QS-18-12 QS-36-12 QS-48-12 QS-60-12 QS-72-12 Raxfly, 5 V 7.2 A RD6030-Max RPS-120-27 RuiDeng 68 V 800 W power supply S-120-24 S-180-12 S-200-5 S-240-12 S-360-36 S-480-24 SANMIM GFA15A-5 Sanmim GPA40B Sanmim GPA50A-12 Sanmim GPN30E-15 SANMIM GPT70A-12 Sanmim SM-PLG06A, 15 V version Sealed 36 W 3 A Sealed 100 W, 12 V, 8.3 A power supply Sealed 100 W 8.3 A SVEN SB-550 power supply TMP-30124C Track power supply, 48 V, 200 W Track power supply, 48 V 2.1 A, 100 W UC2845-based power supply Ultra-compact 100 W, 12 V, 8.3 A power supply UM-U120S, 12 volts 10 amps UPS-1000 Used 12V 5A power supplies Weather-resistant 100 W 8.3 A WX-DC2416 WX-DC2440 XK-1205DC XY1205 YS-65SCB, 24 V 65 W YS-U50SL ±35 V 500 W power supply АД-12-1A АД-12-2A АД-12-3A АД-12-4A БП60A-С БП120Б-Д9-24C or Model… 2 A power adapter 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 5 V 2 A power supply 5 V 2 A power supply (10 W) 5 V 2 A power supply with microUSB plug 5 V 3 W power supply 5 V 5 A power supply (25 W) 5 V 7.2 A 36 W power supply 5 V 8 A power supply (40 W) 5 V 20 A power supply (100 W) 5 V 30 A power supply (150 W) 5 V 40 A power supply (200 W), active cooling 5 V 40 A power supply (200 W), passive cooling 5 V 200 W power supply 5 V 500 mA power supply 5.2 V 2 A power supply 12 V 1 A power supply 12 V 1 W power supply 12 V 2 A power supply 12 V 3 A desktop power supply 12 V 3 A power supply 12 V 3 A power supply, adapter 12 V 4 A desktop power supply 12 V 4 A power supply, adapter 12 V 5 A power supply 12 V 5 A power supply 12 V 5 A uninterruptible power supply 12 V 5 W power supply (DIY) 12 V 6 A power supply 12 V 6–8 A power supply 12 V 8 A power supply 12 V 8.3 A perforated power supply 12 V 8.3 A sealed power supply, 415 g 12 V 8.3 A sealed power supply, 850 g 12 V 10 A power supply 12 V 10 W 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 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 power supply 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 power supply 12 V 150 W power supply 12 V 150 W power supply 12 V 200 W power supply 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 12 Volt 3 Amp power supply 12 Volt 50 Amp power supply 12 Volt 180 Watt power supply 12 V power supply, about 3 A 12V-10A board 19 V 3.42 A power supply 20-watt LED driver 24 V 2 A desktop power supply 24 V 2 A power supply 24 V 2 A power supply, adapter (budget version) 24 V 2 A power supply, adapter (with filter) 24 V 2.5 A power supply 24 V 3 A power supply 24 V 4 A power supply 24 V 5 A power supply 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 24 V 72 W power supply 24 V 100 W power supply 24 V 100 W transformer 24 V 200 mA power supply 24 V 300 W power supply 24 Volt 3 Amp power supply 24 V power supply 36 W, 12 V 3 A power supply 36 W 3 A adapter 48 V 1 A power supply 48 V 2.1 A, 100 W power supply 48 V 2.5 A power supply 48 V 4.1 A, 200 W power supply 48 V 5 A 240 W power supply 48 V 8.3 A, 400 W power supply 48 V 8.3 A power supply 48 V power supply 50 V 2.5 A power supply 60 V 5 A power supply 60 V 300 W power supply, version two 60W-12V, IP67 68 V 600 W power supply 100 W, 12 V, 8.3 A power supply in metal case 100-watt power supply 120-watt power supply 1203 1204 1205 1206 1207 1208 1500 W 68 V power supply AC-DC2416 BBP-30 C400 power supply CTG-60W-12V CTG-150W-12V CTG-200W-12V CTG-300W-12V Desktop 36 W 3 A Desktop 72 W 6 A Desktop 120 W 10 A DPS-460EB A Dual-voltage power supply Enclosed power supply, 10 A EPP-100-12 ESCAM QD410 supplied power adapter FSA-12V 100W Geekcreit 24 V 6 A power supply GFA20A-12 GOPHERT CPS-3205 GOPHERT CPS-6011 Gospower G0966A-540-0278 HCA-48 HCA-60 HCA-72 HCA-100 HCA-100L HCF-18L HCF-24L HCF-36-12 HCF-36L HCF-36R HCF-48L HCF-60-12 HCF-60L HCF-60R HCF-100-12 HCF-150-12 HCF-200-12 HCF-250-12 HCF-320-12 HCF-320-24 Hi-Link HLK-PM12 LF-CBB24-2A Low-profile 12 V 20 A power supply LRC-60-1050 LRC-60-1400 LRS-350-12 LS-60W-24V LS-100W-24V LS-200W-24V LS-300W-12V LS-300W-24V LS-400W-12V LS-400W-24V Meanwell AD-55A MeanWell EPP-500-54 Mean Well EPS-65S-24 MeanWell HDR-15-24 Mean Well HDR-60-12 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-35A (presumably NET-35C) 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 PLF12A-12 PLF12A-15 PS-220/24-1,5 PSU60B PTA-120W-12V PTA-150W-12V PTA-200W-12V PTA-250W-12V PTA-360W-12V PTA-600W-12V (500 W) PTA-600W-12V (600 W) QS-18-12 QS-36-12 QS-48-12 QS-60-12 QS-72-12 Raxfly, 5 V 7.2 A RD6030-Max RPS-120-27 RuiDeng 68 V 800 W power supply S-120-24 S-180-12 S-200-5 S-240-12 S-360-36 S-480-24 SANMIM GFA15A-5 Sanmim GPA40B Sanmim GPA50A-12 Sanmim GPN30E-15 SANMIM GPT70A-12 Sanmim SM-PLG06A, 15 V version Sealed 36 W 3 A Sealed 100 W, 12 V, 8.3 A power supply Sealed 100 W 8.3 A SVEN SB-550 power supply TMP-30124C Track power supply, 48 V, 200 W Track power supply, 48 V 2.1 A, 100 W UC2845-based power supply Ultra-compact 100 W, 12 V, 8.3 A power supply UM-U120S, 12 volts 10 amps UPS-1000 Used 12V 5A power supplies Weather-resistant 100 W 8.3 A WX-DC2416 WX-DC2440 XK-1205DC XY1205 YS-65SCB, 24 V 65 W YS-U50SL ±35 V 500 W power supply АД-12-1A АД-12-2A АД-12-3A АД-12-4A БП60A-С БП120Б-Д9-24C Compare
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