A popular, quiet triple-output linear supply for electronics labs; the default pick for mixed analog and digital work.
Amazon $449The Rigol DP832 rates 3.8 among multi-output bench power supplys; the OWON OEL8511 rates 3.1 among electronic loads ones. The OWON OEL8511 costs $50 less ($399 vs $449).
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.

A programmable 200 W load for benches that may later gang several units on RS485.
Amazon $399Scores side by side
These two sit in different type classes (multi-output and electronic loads), 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 | Rigol DP832 | OWON OEL8511 |
|---|---|---|
| Overall rating | 3.8/5 | 3.1/5 |
| Value 25% | 22 $2.30 per watt ($449, 195 W rated) | 26 $2 per watt ($399, 200 W rated) |
| Output quality 20% | 96 0.3 mVrms ripple and noise | 47 5 kHz dynamic mode |
| Resolution 15% | 50 10 mV / 1 mA setting resolution | 75 1 mV / 1 mA setting resolution |
| PC control 15% | 80 USB with SCPI | 80 USB, RS232, RS485 with SCPI |
| Protection & features 10% | 60 over-voltage protection, over-current protection | 60 over-voltage protection, over-current protection |
| Warranty 15% | 100 3-year warranty | 0 warranty not published, scored as none |
Specifications
| Rigol DP832 | OWON OEL8511 | |
|---|---|---|
| Output | ||
| Type | Power supply | Electronic load |
| Regulation | Linear | - |
| Channels | 3 | 1 |
| Channel ratings | 30 V/3 A, 30 V/3 A, 5 V/3 A | 150 V/20 A, 200 W |
| Max voltage | 30 V | 150 V |
| Max current | 3 A | 20 A |
| Rated power | 195 W | 200 W |
| Ripple and noise | 0.3 mVrms / 2 mVp-p | - |
| Dynamic mode | - | 5 kHz |
| Load modes | - | CC, CV, CR, CP |
| Precision | ||
| Setting resolution | 10 mV / 1 mA | 1 mV / 1 mA |
| Readback resolution | 10 mV / 1 mA | 1 mV / 0.1 mA |
| Control | ||
| PC interfaces | USB | USB, RS232, RS485 |
| SCPI | Yes | Yes |
| Over-voltage protection | Yes | Yes |
| Over-current protection | Yes | Yes |
| Build | ||
| Weight | 23.1 lb | 9.3 lb |
| Warranty | 3 years | - |