Current limiting protects the circuit, and the ripple figure tells the rest · review
RUZIZAO SPS-E3010, 30 V 5 A or 15 V 10 A, 150 W review
A palm-sized bench supply limited to 150 W, switching between 30 V at 5 A and 15 V at 10 A, set by encoder knobs on a three-digit display, whose listing describes no protection at all.
The bottom line A compact supply with a clear power envelope and precise-feeling encoder controls. It lists no protections, and on a bench supply that is the first thing to confirm with the seller.
The SPS-E3010 listing, bullet by bullet
Six bullets: a 150 W supply switchable between 15 V at 10 A and 30 V at 5 A, which cannot be set beyond 150 W; a palm-sized case under 1 kg with a fan; a three-digit display and encoder knobs, voltage in 0.1 V and current in 0.01 A; a fan that runs from power-on rather than by temperature; a 100–240 V input at 50–60 Hz; and a box with the supply, output and input cables and a manual.
A 150 W envelope on the RUZIZAO
30 V × 5 A and 15 V × 10 A are both 150 W. The listing explains that the supply will not accept settings beyond that product, which is the honest way to state a range that is not a rectangle.
Three digits, set by encoder
0.1 V and 0.01 A are the steps the display shows. They are adequate for powering circuits and coarse for characterising them, and they describe the display rather than how accurately the output holds the value.
Protections the SPS-E3010 page omits
Every other supply in this family names at least one protection. This listing names none, which may be an omission rather than an absence; either way it is the question to put before connecting anything valuable.
Availability
At the last look-up, the German Amazon store was asking roughly 34 €.
The British, French and Spanish Amazon catalogues list the product, yet no seller was offering it.
The American and Italian Amazon stores returned no entry, so the buy button there opens a search rather than a missing page.
Every figure here is Keepa’s reading on the date this page was last updated. Stock and prices can change at any time.
Prices quoted in this text were read on 15 September 2026. The live price is at the top of the page.
Where it earns its place, and where it falls short
Strengths
Up to 10 A at 15 V or 5 A at 30 V, with the 150 W limit explained plainly
Encoder knobs that select each digit, replacing potentiometers
Small and under 1 kg, with a 100–240 V input
Compromises
No protections described — not overcurrent, overvoltage or short circuit
Only three display digits, 0.1 V and 0.01 A
The fan runs whenever the supply is on, as the fourth bullet states
Specifications
Voltage and current range
0–30 V and 0–10 A, capped at 150 W: 30 V at up to 5 A, or 15 V at up to 10 A, first bullet
Channels
Absent from the listing
Linear or switching design
Absent from the listing
Ripple
Absent from the listing
Display resolution
Three digits; voltage in 0.1 V and current in 0.01 A steps, third bullet
Programmability
Absent from the listing — values are set digit by digit with encoder knobs
Protections
Absent from the listing
Amazon reference
B0DRHQQ9Y7 (same reference on 4 Amazon marketplaces)
EAN
0768351108317
Questions makers ask before buying
Can the RUZIZAO SPS-E3010 give 30 V at 10 A?
No. The first bullet says output is limited to 150 W: at 10 A the voltage cannot exceed 15 V, and at 30 V the current cannot exceed 5 A.
Is the SPS-E3010 fan temperature-controlled?
No. The fourth bullet says the fan starts when the supply is switched on and is not temperature-controlled.
0–30 V, 0–10 A · 4-digit LED for voltage, current and power · keypad lock · output switch · protection against overcurrent, overheating and overvoltage · ground terminal · fan
A 0–30 V, 0–10 A bench supply with four-digit displays for voltage, current and calculated power, a lockable keypad and a front output switch, protected against overcurrent, overheating and overvoltage.
Best for: A general electronics bench up to 30 V and 10 A that wants settings locked between sessions.
32 V, 10 A · coarse and fine encoders, 0.01 V and 0.001 A setting · output on/off button · OCP · temperature-controlled fan · 20 W USB-A and USB-C · 115/230 V selectable
A 32 V, 10 A bench supply with coarse and fine encoder knobs setting to 0.01 V and 0.001 A, an output on/off button, overcurrent protection and two 20 W USB charging ports.
Best for: A maker bench powering microcontroller boards, single-board computers and motors up to 10 A, where knob-based setting saves time.
0–30 V, 0–10 A · programmable over USB from a PC · 4 memory presets · user-set OVP and OCP · 2.8 in TFT, numeric or curve display · 5 V 1 A USB port · 200–240 V input
A programmable 0–30 V, 0–10 A bench supply controlled from a computer over USB, with four memory presets, user-set overvoltage and overcurrent limits, and a 2.8-inch screen that shows readings as numbers or curves.
Best for: Logging or automating power tests from a computer, such as battery charging runs, at up to 30 V and 10 A.
