OONO blinking flasher module DC 4.5–30V 10A, normally-open adjustable ON/OFF timer with 25-turn pots

OONO's DC 4.5–30V 10A Blinking Flasher Module is a compact, adjustable, normally-open timer that produces a repeatable ON/OFF flashing output for DC lights and indicators.

This compact electronic flasher converts a steady DC supply into a repeatable blinking output with separately adjustable ON and OFF durations. Designed for resistive and mildly inductive loads, it supports LEDs, incandescent DC bulbs, safety beacons and small warning signs across a wide input range. Two 25-turn potentiometers let you precisely tune flash timing from milliseconds to many seconds, while a visible LED shows output status. The module is housed in a small plastic case with mounting holes and pre-wired leads for quick installation.

How adjustable are the ON and OFF times?

You can set the ON time and the OFF time independently using two precise 25-turn potentiometers. Each potentiometer covers a wide timing range so you can fine-tune flash rates from near-instant pulses up to long intervals.

• ON time: adjustable from 0.01 to 15.0 seconds
• OFF time: adjustable from 0.01 to 15.0 seconds
• Two 25-turn pots for fine, repeatable adjustments
• Built-in LED shows when the output is active

What electrical loads and voltages does it support?

The flasher accepts DC input voltages from 4.5 V up to 30 V and can switch loads up to 10 A. It is suitable for most small DC lamps and LED arrays, but it does not perform DC-to-DC conversion or voltage regulation.

• Operating voltage: DC 4.5–30 V
• Maximum continuous current: 10 A
• Maximum load: 300 W at 30 V DC, 120 W at 12 V DC
• For DC loads only—no step-up, step-down, or inverter functions

How is the unit mounted and connected in my project?

The module comes in a compact plastic enclosure with two screw mounting holes and pre-attached wires for easy wiring. It’s designed for simple integration into vehicle, workshop, or panel projects where space is limited.

• Compact plastic case with two screw holes for secure mounting
• Pre-wired leads for fast connection—no soldering required for basic installs
• Normally-open output configuration compatible with many indicator circuits
• Visible status LED simplifies setup and troubleshooting

Who is this for: This OONO blinking flasher module is aimed at hobbyists, electricians, and installers who need a reliable, adjustable timer for DC lighting and signaling. It works well in automotive or marine indicator systems, workshop warning lights, prototyping projects, and small signage where controlled flashing is required. If you need a compact, user-adjustable flasher that handles up to 10 A and fits into tight spaces without extra converters, this module is a practical choice.