Siglent SPD1305X
#1 in Single outputFull review
A quiet, precise single-output linear supply for electronics benches that want PC control and remote sense. Less power per dollar than a switcher, but far cleaner output.
Amazon $328$328
The Siglent SPD1305X is the better bench power supply overall, rated 4.0 to 2.9. The Siglent SPD1305X leads on output quality, resolution and PC control. The Riden RD6018 wins on value and protection & features. The Riden RD6018 costs $59 less ($269 vs $328).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Riden RD6018
#13 in Single outputFull review
A high-power buck-converter supply for battery charging, motors and LED work where watts per dollar matter more than clean output.
Amazon $269$269
Which should you buy?
- Choose the Siglent SPD1305X for output quality (0.3 mVrms ripple and noise vs 250 mVp-p ripple and noise (no rms figure)), resolution (1 mV / 1 mA setting resolution vs 10 mV / 10 mA setting resolution) and PC control (USB, LAN with SCPI vs USB).
- Choose the Riden RD6018 for value ($0.25 per watt ($269, 1,080 W rated) vs $2.19 per watt ($328, 150 W rated)) and protection & features (over-voltage protection, over-current protection, stored setups vs remote sense, stored setups).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every single output bench power supply; a clear win is highlighted. How we rank explains each one.
| Factor weight | Siglent SPD1305X | Riden RD6018 |
|---|---|---|
| Overall rating | 4.0/5 | 2.9/5 |
| Value 25% | 24 $2.19 per watt ($328, 150 W rated) | 86 $0.25 per watt ($269, 1,080 W rated) |
| Output quality 20% | 96 0.3 mVrms ripple and noise | 0 250 mVp-p ripple and noise (no rms figure) |
| Resolution 15% | 75 1 mV / 1 mA setting resolution | 25 10 mV / 10 mA setting resolution |
| PC control 15% | 100 USB, LAN with SCPI | 50 USB |
| Protection & features 10% | 40 remote sense, stored setups | 80 over-voltage protection, over-current protection, stored setups |
| Warranty 15% | 100 3-year warranty | 0 warranty not published, scored as none |
Specifications
| Siglent SPD1305X | Riden RD6018 | |
|---|---|---|
| Output | ||
| Type | Power supply | Power supply |
| Regulation | Linear | Switching |
| Channels | 1 | 1 |
| Channel ratings | 30 V/5 A | 60 V/18 A |
| Max voltage | 30 V | 60 V |
| Max current | 5 A | 18 A |
| Rated power | 150 W | 1,080 W |
| Ripple and noise | 0.3 mVrms / 3 mVp-p | 250 mVp-p |
| Precision | ||
| Setting resolution | 1 mV / 1 mA | 10 mV / 10 mA |
| Readback resolution | 1 mV / 1 mA | 10 mV / 10 mA |
| Remote sense | Yes | - |
| Control | ||
| PC interfaces | USB, LAN | USB |
| SCPI | Yes | - |
| Stored setups | 5 | 10 |
| Over-voltage protection | - | Yes |
| Over-current protection | - | Yes |
| Build | ||
| Weight | 12.1 lb | - |
| Warranty | 3 years | - |
| Released | - | 2020-09-24 |