Meet us at Piscine Global Europe · 17–20 November 2026 · Eurexpo Lyon
SpectraLight UltravioletUV pool sanitation

Less chemicals. Better water.

SpectraLight Ultraviolet destroys over 99.5% of the pathogens that enter your pool, so chlorine can drop to the 0.5 ppm found in drinking water. Up to 90% fewer chemicals, no chloramines, and the most powerful UV lamp in its class.

99.5%of pathogens destroyed
0.5 ppmchlorine, like tap water
30 minaverage install
SpectraLight UV sterilizer with the housing cut away to show the glowing UV lamp Trusted by the US Navy 60,000 µW, strongest in its class
99.5%
of pool pathogens destroyed as water passes through the chamber
90%
less chemical demand once UV does the heavy lifting
4×
the UV power of first-generation lamps, using 30% less energy
$600
per year saved on chemicals by owners of larger pools
Engineered differently

The world’s most powerful UV sterilizer in its class

SpectraLight was built on a visionary model for the pool and spa industry, inspired by municipal drinking water treatment. A high-intensity UV-C germicidal ray targets the DNA and RNA of bacteria, viruses, algae, parasites, cysts and more.

Features and technology
Two glowing ultraviolet lamps
01

UV 2.0 ultra high-output lamps

Patented lamps charged with a proprietary blend of Xenon, Neon and Argon deliver four times the UV power of first-generation lamps while using 30% less energy: 60,000 microwatts, the most powerful in its class.

Close-up of the SpectraLight graphite housing and union port
02

Industrial graphite housing

A high-impact, non-corrosive polymer housing with titanium dioxide added for maximum UV resistance. Optimized hydrodynamics ensure high flow rates and maximum UV dosage.

Exploded view of the SpectraLight union, O-ring and stainless insert
03

Aerospace-developed double seal

Fluoroelastomers invented for the aerospace industry, parts machined from billet stock, stainless steel inserts and EPDM O-rings: a seal that is virtually indestructible.

SpectraLight quick-release union parts stacked above the glowing lamp
04

Quick-release, no tools

Modular construction means each unit can be assembled and disassembled in under three minutes. The quartz sleeve comes out and goes back in under 60 seconds without a single tool.

Exploded view of the SpectraLight UV unit on white
05

Smart Connex 360° ports

Both ports rotate 360 degrees, so the existing PVC between your filter and pool splices straight into SpectraLight’s built-in unions. Any port size, vertical or horizontal.

Three kids swimming underwater in a bright blue pool
06

100% safe, EPA-approved process

UV cannot leave the sterilization chamber and leaves no residual in the water. It is a physical process, not a chemical one, approved by the EPA for drinking water disinfection.

The idea

Inspired by drinking water treatment

Municipal drinking water is treated with ultraviolet and a chlorine residual of just 0.5 parts per million, a level safe to drink. The high organic load in a regular pool would quickly use up such a low level of chlorine. The secret to SpectraLight’s success is its ability to destroy over 99.5% of that organic matter before it ever reaches the chlorine.

UV does the heavy lifting, so chemicals can be reduced by 80 to 90%. Chlorine drops to the level found in tap water, and the bound chlorine that causes red eyes and chloramine odor disappears. The World Health Organization has stated that 0.5 ppm free chlorine is effective when UV is used.

Chlorine levels through a year: total and bound chlorine fall sharply after SpectraLight UV is installed in May 4 ppm 3 2 1 0 JanFebMarAprMayJunJulAugSepOctNov UV INSTALLED Total chlorine Bound chlorine (chloramines)
A customer pool: chloramines collapse after UV is installed
The science

Two seconds to destroy a pathogen

SpectraLight is installed in-line just after your filter. As water flows through the chamber, the lamp bombards it with a high-intensity germicidal ray between 250 and 270 nanometers, the optimal wavelength to destroy microorganisms. The energy penetrates the cell wall and breaks the carbon bonds in the organism’s DNA, so it can no longer grow or multiply.

More than 60 waterborne pathogens are destroyed in about two seconds, including algae, bacteria, cysts, giardia and viruses. A specialized quartz sleeve protects the lamp while transmitting 99.9% of the UV light, and the whole system uses about the same electricity as a light bulb.

X-ray view of the UV lamp lit inside the SpectraLight chamber
The lamp inside the sterilization chamber
The research

The impact of pool chemicals

Research has confirmed what we have suspected for years: a low-chemical pool is better for our health and the environment. Our skin is like a sponge, capable of absorbing hundreds of chemicals found in pool water, and repeat exposure to common chlorine levels has been linked to allergies, asthma and damage to the heart and immune system.

When chlorine was lowered to 0.5 ppm in further testing, the risks disappeared. Those studies led to widespread support for UV: about 80% of new water parks and aquatic facilities now feature ultraviolet, the State of New York requires it on all water parks, and the Olympic pools in Athens, Sydney and Beijing used it.

A father lifting a laughing boy in a backyard pool
The install

Three steps, about 30 minutes

SpectraLight connects between your existing pool filter and the line returning to the pool, on the equipment pad near your pump and filter. Connect the two Smart Connex ports, plug it in, and it starts working immediately. Any plumber or handyman can do it, and many owners do it themselves.

  • Compatible with everything: all pumps, all filters, and saltwater pools. Dial the salt system down once UV is running.
  • Light-bulb power draw. Residential units use about the same electricity as a low-wattage bulb.
  • Low maintenance. Inspect the quartz sleeve every 3 to 4 months and replace the lamp once a year, no tools needed.
SpectraLight UV unit with the three install steps marked
Connect port 1, connect port 2, plug in
Proof

Chosen by the United States Navy

The United States Navy selected SpectraLight UV as the provider of ultraviolet sanitation for its Marine Mammal Program, chosen for its combination of ultraviolet power output and efficiency. The cornerstone of the dolphin pool water quality program is UV: SpectraLight maintains a healthy environment in the marine mammal pool by eliminating bacteria and other waterborne pathogens.

SpectraLight has also been featured in the Wall Street Journal, where a Texas homeowner reported running his pool on 0.2 ppm of chlorine, down from 1.5 ppm. “It’s crystal clear,” he said.

A US Navy handler with a dolphin from the Marine Mammal Program
How it works

Three steps to low-chlorine water

SpectraLight installs on the pool pad after the filter. Every drop of water passes through the chamber on each turnover.

Water enters the chamber

Filtered water flows through the graphite sterilization chamber, around the quartz sleeve that houses the ultra high-output UV-C lamp.

UV-C destroys the pathogen

The germicidal ray scrambles the DNA and RNA of bacteria, viruses, algae and cysts in about two seconds, and breaks down the organics that feed chloramines.

Chlorine does less, so you use less

With over 99.5% of the load gone, a residual of just 0.5 ppm keeps the pool safe, the same level as tap water. Most owners see the difference in 1 to 2 days.

The SpectraLight UV is the most powerful UV pool system in its class, and it’s the one I run on my own pool. I can’t think of another product that saves money, saves time, reduces the need for chemicals, and creates healthier pool water.

Justin, The Pool NerdIndependent reviewer
The Pool Nerd
A family of four sitting on the edge of their pool
Specifications

Sized by flow rate, from spa to semi-commercial

Nine residential models from the SL-350 spa unit to the twin-lamp SL-800, plus commercial SPL models rated to 1,120 GPM. Three of the most popular pool models are shown here.

ModelSL-500SL-600SL-800
Designed forResidential poolResidential or semi-commercialResidential or semi-commercial
UV lamp power100 W150 W300 W
LampsOneOneTwo
Flow at 30,000 µW/cm²110 GPM187 GPM374 GPM
Flow at 60,000 µW/cm²55 GPM93 GPM187 GPM
Current1.4 A1.4 A2.8 A
Length37 in42 in42 in
UV 2.0 lamps and Smart ConnexYesYesYes
Electrical110/220 V110/220 V110/220 V

Every model: industrial graphite housing, electronic solid-state ballast, double seal with EPDM, no-tools maintenance. Housings carry a limited lifetime warranty; the complete unit is covered for one year, with a 30-day money-back trial on residential units.

FAQ

Common questions

Answers from the team that sells and supports SpectraLight UV across the United States.

How much can I lower the chlorine in my pool?

SpectraLight can eliminate 80 to 90% of the chlorine used in a traditionally chlorinated pool. A low 0.5 ppm residual of free available chlorine is recommended, about the level found in most tap water, and the World Health Organization supports that level when UV is used. Commercial pools may require slightly higher residuals.

Does SpectraLight work with a salt chlorine generator?

Yes. Salt water pools simply make chlorine, so SpectraLight is compatible with salt systems and chlorine generators. It lets you dial down the amount of chlorine the salt system manufactures.

Does a UV lamp use a lot of energy?

No. Residential SpectraLight sterilizers use about the same electricity as a low-wattage light bulb. It is a very cost-effective method of sterilization, often saving hundreds or even thousands in annual maintenance costs.

Where does it install?

On the filtration pad, near your pump and filter. The best place is after the filter, but it can be installed before the filter if that is not feasible, vertically or horizontally. Most installs take about 30 minutes.

What maintenance does it need?

Inspect and clean the quartz sleeve every 3 to 4 months; the quick-release design lets you remove and reinstall it in under 60 seconds without tools. Replace the UV lamp once a year, before its output declines.

What is the warranty?

All SpectraLight UV housings carry a limited lifetime warranty against defects in materials and workmanship. The complete unit is covered for one year from purchase, and residential units come with a 30-day money-back satisfaction guarantee.

Beyond SpectraPool

SpectraLight UV across our pool network

Where to buy SpectraLight UV

Independent reviews

Make UV, ozone or sanitation equipment?

We built the US market for UV pool sanitation. Partner brands get the same retail, support and dealer network from our Texas campus.