OWON OEL8511
A programmable 200 W load for benches that may later gang several units on RS485.
Amazon $399$399
The OWON OEL8511 rates 3.1 among electronic loads bench power supplys; the B&K Precision 1671A rates 2.0 among multi-output ones. The B&K Precision 1671A costs $29.47 less ($369.53 vs $399).
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.
B&K Precision 1671A
#9 in Multi-outputFull review
A basic bench supply with fixed logic rails, for classrooms and service benches that do not need PC control.
Amazon $369.53$369.53
Scores side by side
These two sit in different type classes (electronic loads and multi-output), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | OWON OEL8511 | B&K Precision 1671A |
|---|---|---|
| Overall rating | 3.1/5 | 2.0/5 |
| Value 25% | 26 $2 per watt ($399, 200 W rated) | 22 $2.33 per watt ($369.53, 158.5 W from the channel ratings) |
| Output quality 20% | 47 5 kHz dynamic mode | 33 5 mVrms ripple and noise |
| Resolution 15% | 75 1 mV / 1 mA setting resolution | 0 100 mV / 10 mA readback resolution |
| PC control 15% | 80 USB, RS232, RS485 with SCPI | 0 no PC interface |
| Protection & features 10% | 60 over-voltage protection, over-current protection | 30 over-voltage protection |
| Warranty 15% | 0 warranty not published, scored as none | 0 1-year warranty |
Specifications
| OWON OEL8511 | B&K Precision 1671A | |
|---|---|---|
| Output | ||
| Type | Electronic load | Power supply |
| Channels | 1 | 3 |
| Channel ratings | 150 V/20 A, 200 W | 30 V/5 A, 12 V/0.5 A fixed, 5 V/0.5 A fixed |
| Max voltage | 150 V | 30 V |
| Max current | 20 A | 5 A |
| Rated power | 200 W | 158.5 W (channels added) |
| Ripple and noise | - | 5 mVrms |
| Dynamic mode | 5 kHz | - |
| Load modes | CC, CV, CR, CP | - |
| Precision | ||
| Setting resolution | 1 mV / 1 mA | - |
| Readback resolution | 1 mV / 0.1 mA | 100 mV / 10 mA |
| Control | ||
| PC interfaces | USB, RS232, RS485 | None |
| SCPI | Yes | - |
| Over-voltage protection | Yes | Yes |
| Over-current protection | Yes | - |
| Build | ||
| Weight | 9.3 lb | 14.3 lb |
| Warranty | - | 1 year |