B&K Precision 1687B
#7 in Single outputFull review
A durable name-brand switching supply for service benches and 24 V equipment, with a warranty the import brands do not offer.
Amazon $408$408
The B&K Precision 1687B is the better bench power supply overall, rated 3.1 to 2.9. The B&K Precision 1687B leads on output quality. The Riden RD6018 wins on value and protection & features. The Riden RD6018 costs $139 less ($269 vs $408).
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 B&K Precision 1687B for output quality (5 mVrms ripple and noise vs 250 mVp-p ripple and noise (no rms figure)).
- Choose the Riden RD6018 for value ($0.25 per watt ($269, 1,080 W rated) vs $1.13 per watt ($408, 360 W rated)) and protection & features (over-voltage protection, over-current protection, stored setups vs over-voltage protection, 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 | B&K Precision 1687B | Riden RD6018 |
|---|---|---|
| Overall rating | 3.1/5 | 2.9/5 |
| Value 25% | 42 $1.13 per watt ($408, 360 W rated) | 86 $0.25 per watt ($269, 1,080 W rated) |
| Output quality 20% | 33 5 mVrms ripple and noise | 0 250 mVp-p ripple and noise (no rms figure) |
| Resolution 15% | 50 resolution not published (neutral score used) | 25 10 mV / 10 mA setting resolution |
| PC control 15% | 50 USB | 50 USB |
| Protection & features 10% | 50 over-voltage protection, stored setups | 80 over-voltage protection, over-current protection, stored setups |
| Warranty 15% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| B&K Precision 1687B | Riden RD6018 | |
|---|---|---|
| Output | ||
| Type | Power supply | Power supply |
| Regulation | Switching | Switching |
| Channels | 1 | 1 |
| Channel ratings | 1-36 V/10 A | 60 V/18 A |
| Max voltage | 36 V | 60 V |
| Max current | 10 A | 18 A |
| Rated power | 360 W | 1,080 W |
| Ripple and noise | 5 mVrms / 50 mVp-p | 250 mVp-p |
| Precision | ||
| Setting resolution | - | 10 mV / 10 mA |
| Readback resolution | - | 10 mV / 10 mA |
| Control | ||
| PC interfaces | USB, analog remote | USB |
| Stored setups | 3 | 10 |
| Over-voltage protection | Yes | Yes |
| Over-current protection | - | Yes |
| Build | ||
| Weight | 5.2 lb | - |
| Warranty | 2 years | - |
| Released | - | 2020-09-24 |