SLP Lighting
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A leader in developing and manufacturing a full range of lighting solutions and innovative products. In 1969, Koller Enterprises Inc.
formed Scientific Lighting Products(SLP). SLP started with three different louvers and based on customer needs. Today SLP Lighting is a leader in developing and manufacturing a full range of lighting solutions and innovative products such as our Citadel Enlcosures, Parabolic, Aluminum and Decorative Louvers, Prismatic Lenses Eggcrate and many more products. SLP provides custom products with begini
06/17/2026
SLP's marketing team just doubled.
More designs, more accuracy, more momentum. Arianna's here, and we're already moving faster than ever.
Big things ahead.
06/10/2026
All-new Bambu Lab H2D!
Our engineering team is now printing accurate rapid prototypes with the all-new Bambu Lab H2D 3D printer.
From concept to verifiable, in-hand results. We partner with you to build your industrial fixture. Real prototypes, real testing, real confidence, become an SLP partner.
https://www.slplighting.com/capabilities-services/contract-manufacturing
06/04/2026
Forklifts ram fixtures, accidents happen. A damaged fixture means fines, downtime, and a replacement bill nobody wants. A smart crew protects their lighting investments with wire guards. The all-new guards for the Citadel 4S are here in white, black, or chrome finishes, check them out.
And we don't stop at the 4S. Got a fixture that needs protecting? Configure your order today.
https://www.slplighting.com/citadel-4s-wire-guard
Soaked. Slammed. Sprayed.
The Citadel Round. 18" compact high bay washdown. IP65, IP66, IP67, IP69. 1500 PSI rated, NSF certified. Made in Fenton, MO.
05/25/2026
Today SLP remembers those who gave everything so we could keep building. Thank you.
05/19/2026
𝗔𝗶𝗺 𝘁𝗵𝗲 𝗽𝗿𝗲𝘀𝘀𝘂𝗿𝗲 𝘄𝗮𝘀𝗵𝗲𝗿 𝗿𝗶𝗴𝗵𝘁 𝗮𝘁 𝗶𝘁. 𝗧𝗵𝗮𝘁'𝘀 𝘁𝗵𝗲 𝘄𝗵𝗼𝗹𝗲 𝗱𝗲𝗺𝗼.
Most high-pressure, hot-water kills normal fixtures, but not ProTube. Made and assembled in the USA. Build America, Buy America compliant.
Hose down everything. Leave the lights on.
https://www.slplighting.com/products/protube
Food processing. Car washes. Parking garages. Anywhere that gets hosed down needs a fixture that can take it.
We sprayed the Citadel 4ft. in our IP66 chamber to show exactly what it handles. Hint: It passes with flying colors.
https://www.slplighting.com/products/citadel-4
05/12/2026
Will Baron, out at Goshen Valley Boys Ranch in Waleska, GA today. Volunteering.
Goshen Valley has been home to young men in the foster care system since 1999. Family-style homes, dedicated houseparents, 160 acres of north Georgia countryside. It's actual hard work that changes lives.
When the chance came up to back kids who got dealt a rough hand, Will said go. So did we.
05/08/2026
Spray it. Steam it. Soak it.
The Citadel Round takes 1,500 PSI of washdown without flinching. IP69 sealed. UL 5VA fiberglass. PinSert System. NSF certified.
New page. New photography. Available now. 🇺🇸 BAA/BABA compliant.
https://www.slplighting.com/products/citadel-round
Tons of clamping force. Robotic arms. Polycarbonate and acrylic, shot under pressure.
The tool changes. The machine doesn't.
Today, Citadel lenses. Tomorrow, the next thing we engineer.
Sullivan, Missouri. Day in, day out.
https://www.slplighting.com/capabilities-services
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Opening Hours
| Monday | 8am - 5pm |
| Tuesday | 8am - 5pm |
| Wednesday | 8am - 5pm |
| Thursday | 8am - 5pm |
| Friday | 8am - 5pm |