Fade-in Fade-out LED Dimmer with Smooth Fading Effect for soft start and stop
Oznium Fade-in Fade-out LED Dimmer
Imagine your lights gradually brightening when you turn them ON and gently dimming when you turn them OFF.
Achieving this effect is easy—simply install Oznium Fade-in Fade-out LED Dimmer between your power source and your LEDs. Enjoy smooth fade-in and fade-out lighting. Activate the dimmer with either positive or negative trigger signal—such as a standard ON/OFF switch or motion sensor—and your LEDs will slowly illuminate. When the trigger is removed, your LEDs will gradually fade out before turning off completely.
You can choose from 13 different fade speeds, ranging from a gradual 19.5 seconds to a rapid 1.5 seconds. Adjust the speed easily by pressing the "Speed" button on the dimmer; each press increases the speed by 1.5 seconds. The LEDs will flash once to confirm the speed change.
How Does The Oznium Fade-in Fade-out LED Dimmer Work?
Oznium's Fade-in Fade-out LED Dimmer uses a Pulse Width Modulation (PWM) signal to control the power. PWM delivers power efficiently with minimal heat generation, making it an energy-saving solution.
Unlike using resistors to dim lights, PWM avoids unnecessary energy loss as heat. It also offers precise control, allowing fine adjustment of brightness to create a smooth fading effect and prevent sudden changes in lighting.
Linear vs Curve Fading
The first generation of the Oznium Fade-in Fade-out LED Dimmer featured linear fading, delivering a straightforward transition from 0% to 100% brightness. Following further research, Oznium improved the Fade-in Fade-out LED Dimmer by introducing a curved fading effect.
Unlike linear dimming, which increases brightness at a constant rate and can feel harsh to the eyes—especially at low levels—curved dimming gradually ramps up brightness in a way that aligns with the eye’s natural heightened sensitivity to low light. This approach provides smoother, more comfortable transitions that reduce eye strain and discomfort, mimicking natural lighting changes like sunrise and creating a more relaxing, high-quality experience.
Endless Possibilities
Discover endless creative possibilities with Oznium high-quality fade-in fade-out LED dimmer —perfect for illuminating your car, truck, boat, or home.
The potential applications are limitless, and we’re always excited to see the innovative ways our customers use our LED controller.
We would be very grateful if you could share your application video with us.
⇣Watch the videos to learn more about our fade-in fade-out dimmer ⇣
Detailed Wiring of 2A Version
| Switches (Positive Trigger) |  |
| Sensors (Negative Trigger) |  |
| Switches (Positive Trigger) |  |
| Sensors (Negative Trigger) |  |
| 2 Amp (24 Watts) | 8 Amp (96 Watts) | |
| Input Voltage | 12-24VDC | 12-24VDC |
| Output Voltage | Same as Input Voltage | Same as Input Voltage |
| Stand by Current | 25mA | 25mA |
| Maximum Current | 2A@12VDC, 1A@24VDC | 8A@12VDC, 4A@24VDC |
| Protection | 2A Fuse | Reverse Polarity Protection |
| Dimension | 45 x 23 x 5 mm | 78.7 x 47.5 x 14.4 mm |
| Weight | 15g | 68g |
| Wire Length | 180mm | 170mm |
| Wire Gauge | 20AWG | 16AWG & 22AWG |
| Memory | Yes | Yes |
| Dimming Method | PWM | PWM |
| Triggering | Can accept either positive or negative trigger | Can accept either positive or negative trigger |
| How to change speed | Press the "Speed" button to cycle fading speed | Press the "<" and ">" touch switch to increase and decrease fading speed |
| Speed display | No | Three digits seven-segment indicator to display the current fading speed |
| IP Rating | IP64 | IP66 |
* The 8A dimmer needs about 10 seconds to "warm up" after connected to a power source.
* The speed of the 8A dimmer can only be changed when the dimmer switch is at "off" state. It means that the light connected to the dimmer has to be off (i.e. after faded out) in order to change the speed.
* Both the 2A and 8A dimmers are designed so that the 12V+ and 12V- input wires remain constantly connected to a power source, and the blue or yellow trigger wire is used to activate the fading effect. The fade-out effect will not work if the power and trigger signals are connected to the same source.
* For best results, use this fade-in fade-out LED dimmer with LEDs that do not have built-in drivers or constant current circuits. Using it with constant-current LEDs may affect the effectiveness of the fading effect.
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Drill Bit
Buy them conveniently from us in various sizes to match the diameter of your LED Bolts: 6mm, 11mm, and 16mm.
Rubber O-Ring
For a water-tight seal around the bolt bezel and your panel.
DC Barrel Jack Adapter
These adapters allow you to convert your plug / jack / wires to each other.
Wire Splice Connector
A quick and easy way to splice LED wires together for your lighting project.
Dupont Connector Extension Cable
2.54 mm Dupont Connector Extension Cable
2 Core Marine Cable
Used for connecting LED strips or pretty much any other LED product, and extending wires.
18 Gauge Hookup Wire
18 gauge wire is very flexible and is perfect for installing cathodes, LEDs, meteor tubes, or switches.
Fade-in Fade-out LED Dimmer Photos
Customer questions & answers
Hello,
You folks have good products, ordered from you folk's below. This question is somewhat answered in previous FAQ but needing to clarify.
Lexus car application for exterior lights tapped into the interior dome light switch, which is a PWM ground from the cars BCM. This car is sensitive and i wanted to ask to ensure that the BCM switched ground trigger wire going to this module is simply just a "signal" and there is no backflow of any kind or pull on this wire; functioning similar to a MOSFET?
You folks have good products, ordered from you folk's below. This question is somewhat answered in previous FAQ but needing to clarify.
Lexus car application for exterior lights tapped into the interior dome light switch, which is a PWM ground from the cars BCM. This car is sensitive and i wanted to ask to ensure that the BCM switched ground trigger wire going to this module is simply just a "signal" and there is no backflow of any kind or pull on this wire; functioning similar to a MOSFET?
The fade dimmer does not have any backflow through the wire.
Why does the 8A fade-in fade-out LED dimmer shift its fading time automatically?
Please make sure the trigger signal is deactivated before turning "ON" the fade-in fade-out LED dimmer.
For example:
Case 1 - The trigger signal is activated before you turn "ON" the dimmer. <-- NOT OK
Case 2 - Turn "ON" the fade-in fade-out LED dimmer before the trigger signal is activated. <-- OK
For example:
Case 1 - The trigger signal is activated before you turn "ON" the dimmer. <-- NOT OK
Case 2 - Turn "ON" the fade-in fade-out LED dimmer before the trigger signal is activated. <-- OK
Is it possible to make it work on 5V?
Not really.
Customer Reviews
4 Reviews
Brilliant, high quality product!
Toby Hodges from Brisbane, Australia
I'm in Australia & simply couldn't find a similar product as good as this one locally (or on eBay!). So I ended up ordering two of these from the US which arrived quickly. The units are very high quality & work extremely well. The only small issue I had was that this unit operates with a Positive voltage trigger but my car uses a Negative voltage trigger... So to achieve both fade-on / fade-off for my car's internal lighting, I had to add a 12v relay. No big deal & works brilliantly!
very good value!
Phil Spencer from London, United Kingdom
As with the other reviewer, I too have hooked it up to a PIR sensor. Using 12v DC is so much easier than using the mains electricity (240v AC in the UK), and it allows me to use products from other countries.
I've had to buy two, as the max ampage meant I could only power about 2m of LED strip lights, and I needed 4m.
I've hooked up 2 of these (2m of LED per fader) plus PIR to the house entrance, so as you come in, it fades on, then when you leave the house, it fades out.
Easy to use, instructions are easy to follow too.
Great little device
Damon from Washington
I got one of these fade-in-fade-out dimmers hooked up with a rotary dimmer and a PIR sensor - and it works great! The unit itself is tiny - you can easily use it in just about any circuit designs. The dimming effect really lives the LEDs that luxury feel - great for zone lighting.
Some things I did notice though - before the LEDs fade in, they'll briefly flash at about 30% brightness for a split second. On slower settings, it takes a quite a while to for the LEDs to fade in and fade out (charging/discharging capacitors?). Not great if you want the LEDs to immediately start fading in when you hit the switch. I haven't yet figured out whether this is by design in this module or something to do with the circuit it's in.
Otherwise a great little module that I will definitely be getting more for future projects!
As described, looks solid
antonis chr from Rhodes, Greece
Perfect for what im bulding, had a hassle connecting it (complete amateur), vids here helped thought!
Thanks oznium!