UL300 Stainless Steel LED Luminaire - Fontana Fountains

One of the smallest underwater luminaires, UL300 is designed for small-scale applications with great illumination requirements. With power consumption of only 6W in RGB and 12.5W in white color, it is one of the most low-cost solutions, yet it can illuminate 2-meter high fountains vividly, safely and reliably.

UL300 incorporates 3 High-Power LEDs made by Cree, Inc. (USA) and it is a Class III luminaire, CE certified, offering IP68 protection degree. Its housing is made of superior quality, highly durable & corrosion resistant AISI304 stainless steel (or 316 on request) with stylish finishing. It is available in RGB, Cool & Warm White, and standard models ship with 3 meters of waterproof chlorine-resistant cable.

The led:bus protocol permits easier and faster installation, requiring only 3-wire cables for RGB models, and the LED module incorporates a Microprocessor handling data such as ID, color, intensity, temperature & status with advanced safety features like 16-step thermal protection and reverse polarity protection.

With the standard lenses UL300 offers 3.929 candelas in white & 995 candelas in RGB, and with the optional spot lenses the light intensity goes up to 15.687cd & 3.976cd respectively.

  • 6W RGB & 12.5W White
  • 12-24V DC (10-30V Operating Range)
  • Incredible Light Intensity & Vivid Colors
  • Stainless Steel AISI 304 Housing
    Available in 316
  • IP68 Protection Degree – Class III
  • 16-Step Thermal Protection
  • Reverse Polarity Protection
  • Stylish Design & Finishing
  • High Corrosion and Impact Resistance
  • Ships with 3 m waterproof cable
  • Microprocessor on Board

Extraordinary Light Intensity
288 Lumens per LED. 1427 Candelas per Watt.

We managed to squeeze out 288 Lumens from every single LED chip – an industry unique value. This way, you can achieve perfect illumination of higher fountains by using smaller, more efficient luminaires.

Pure Stainless Steel

The housing of UL300 is made of pure, heavy-duty Stainless Steel to withstand the harshest conditions, day-in day-out for decades. It is designed to protect the light source from corrosion, aggressive water and impacts, requiring minimal maintenance and always looking brand new. The exceptional waterproofing offers IP68 protection degree for up to 2m / 6ft water depth.

Microprocessor Inside

All luminaires incorporate cutting-edge microprocessors that constantly monitor the luminaire’s status & temperature, and at the same time communicate with the controlling device receiving and interpreting data about ID, color and intensity. As complicated as it might seem, the whole network works by itself. You don’t have to worry about voltage drop, over-voltage, polarity, over-heating, internal or external interference. Everything Just works. All you have to do is enjoy the limitless spectrum of 16.7 million colors.

Distance matters no more

UL300 can work under both 12V and 24V DC and anywhere in between without affecting light intensity. It also provides a 10% margin for voltage drop and over-current. And since the controlling information travels digitally within the same 3-wire cable, you can have a phenomenal cable length of up to 200 meters between the controller and the lights.

Four 3 Wires

The magic with TheSmartLEDs is that they require just a simple 3-wire cable to operate (no shielding required). The two wires are used for current and the third one is used for sending and receiving led:bus data. This drops cable costs by 25% and also makes installation much easier.


UL300 thinks for itself so you don’t have to. If the temperature inside the fixture rises for any reason (e.g. operating outside of water), the microprocessor will gradually dim the light in 16 steps in order to cool down instead of just switching it off. This way, your fountain will keep being illuminated and the luminaire’s life-cycle is extended.

Flicker Free

A major drawback of low-end LED luminaires is the flickering effect created on the fast-moving water surface. Apart from annoying, this effect can cause serious health problems to spectators. We have eliminated this issue by utilizing special electronics inside the luminaire, raising the frequency to non-conceivable levels.

IP68 & CE

UL300, just like any other Fontana underwater luminaire offers exceptional, long-lasting waterproofing.
The ingress protection degree of UL300 is IP68 rated and certified for up to 2m / 6ft water depth. In addition, UL300 is CE certified.

96.7% Cost and Energy Saving

Would you believe that by excessively illuminating your fountain would actually save you up to 96.7% on energy costs, minimize your CO2 footprint and save hundreds of trees per year? We tried hard to achieve this.

Launch the Savings Calculator
Technical Specifications
  • Fits Just about anywhere.

    Illuminates just about anything.

  • Height (excl. base): 70mm (2.7") | Height (incl. base): 119mm (4.7") | Body Width: 110mm (4.3")


Amount of LEDs: 3 High Power LEDs (made by Cree, Inc. – USA)
Light Data:
RGB: 219 lm
White 6000K: 865 lm
White 3000K: 622 lm
Lens Details: 24° Standard 11° and 40° on request
Module Type: TheSmartLEDModule led:bus equipped
Self-Protection: 16-Step Thermal Protection & Reverse Polarity
Operating Temp.: -5°C to 65°C 23°F to 150°F
led:bus Protocol: Yes
RGB Models require only 3-wire cable to operate
Lifespan: 100.000 hours max.
(complies with L70-spec, in 50.000 hours led initial flux will not degrade by more than 30%)


Material (Standard): Stainless Steel AISI 304 1.4301
Material (Optional): Stainless Steel AISI 316 1.4401
Finishing: Shiny Polished
Second Cable Gland: Available on Request
Protection Glass: Tempered Heat Resistant Safety Glass
Protection Degree: IP68 Protection Certified Watertight up to 2m
Safety Class: III
Mounting: Heavy Duty, Floor-mounted Stainless Steel Bracket


Power Consumption: 12.5W White – 6W RGB
Voltage: 12-24V DC
10-30V DC Operating Range without affecting intensity
Cable: 3.0 M chlorine resistant HO7RN-F Standard
5m, 10m or custum length on request




6W / 12-24V DC
219 Lumens
24° Beam
Part Nr: UL300.RGB

White 6000K

12.5W / 12-24V DC
865 Lumens
24° Beam
Part Nr: UL300.CW

White 3000K

12.5W / 12-24V DC
622 Lumens
24° Beam
Part Nr: UL300.WW

Available Options:
To include one of the following options, add the approriate suffix to the end of the Part Nr.

316 (1.4401) Stainless Steel Construction .316
5 meters chlorine resistant cable HO7RN-F .5H
Free Standing Base .FSB
Telescopic Base .TSB
PWM module (only for RGB model) .PWM
Dimmable (only for White models) .DIM
Addressable module .ADR
Wide Beam Lenses – 40° .F
Spot Beam Lenses – 11° .S
Rockguard .AV

Recommended Accessories:

Power Supply
The Pro Power Supplies are made to withstand extraordinary conditions and keep working for decades.

RGB Controller
Easily control led:bus RGB luminaires. You can create your own colors or choose between colorful sequences.


You can download any of the following files for your own personal use. Information contained in these files might change without prior notice. Also, copy in part or as whole, as well as reproduction, publication or whatsoever are strictly prohibited without written consent by Fontana Fountains.

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