Crawl Space UV Germicidal String Light - 50' UVC Bulbs with Daily Auto Timer

SKU: CSL-50-UV

9 low in stock

$119.00

Estimated standard delivery between January 06 and January 09. Order within . Upgrade for faster delivery at checkout.

  • Cable Length: 50 feet
  • Socket Quantity: 5 (spaced every 10 feet)
  • Cable Color: Commercial yellow
  • Power Source: AC 120 Volts
  • Bulb Type: UVC Germicidal (253.7 nm wavelength)
  • Bulb Base: E26 screw-in (standard base)
  • UVC Output: 253.7 nm (shortwave germicidal spectrum)
  • Ozone Production: Minor amount (normal for UVC operation)
  • Weather Resistance: Yes (designed for crawl space conditions)
  • Cage Guards: Industrial adjustable metal (5 included)
  • Timer Type: Mechanical pin timer (plug-in, daily repeat)
  • Mounting: Screw hooks (5 included)
  • Expandability: Connect up to 5 strings (250 feet total)
  • Application: Crawl space mold and bacteria control
  • Warranty: 3 years (Crawl Space Door Systems Incorporated)
  • 50-foot commercial-grade yellow string light cable
  • Five weatherproof sockets (spaced 10 feet apart)
  • Five E26 base UVC germicidal bulbs (253.7 nm wavelength)
  • Five adjustable industrial metal cage guards
  • Mechanical pin timer for daily automated on/off programming
  • Five screw hooks for mounting
  • 3-year warranty

We want you to be happy with your product!

Within 30 days of your order, we offer a 100% refund if a product was faulty, defective, or damaged in shipping and replacement is not feasible. While extremely rare, if we make a mistake we will also refund or replace the item.

New, unopened standard products may be returned within 30 days of delivery for a refund.

Restocking fees apply on opened boxes. Customer is responsible for return shipping costs for preferential returns.

Germicidal UVC Power

253.7 nm wavelength destroys mold spores, bacteria, and viruses on contact—continuous sanitation prevents mold growth on joists, subfloors, and crawl space surfaces.

Daily Auto Timer

Mechanical pin timer programs lights to turn on/off same time daily—set-it-and-forget-it automation ensures consistent mold prevention without manual operation.

Complete Coverage

Five UVC bulbs every 10 feet provide overlapping germicidal zones across entire crawl space—no dark areas where mold can establish between treatment zones.

Industrial Protection

Metal cage guards protect bulbs and provide safety barrier—weather-resistant construction handles crawl space humidity with 3-year warranty coverage.

Crawl Space UV Germicidal String Light - 50' UVC Bulbs with Daily Auto Timer

Automated Mold Prevention

This professional-grade 50-foot UV germicidal string light system delivers continuous mold and bacteria control in crawl spaces with five UVC bulbs (253.7 nm wavelength) spaced every 10 feet along weather-resistant commercial cable. Designed specifically for unattended crawl space sanitation, this complete kit includes metal safety cages, mechanical pin timer for daily automated operation, and mounting hooks—providing hands-free germicidal protection that runs on your schedule without requiring entry into the crawl space.

CRITICAL SAFETY WARNING: UV Eye Protection Required

UVC light at 253.7 nm is extremely dangerous to human eyes and can cause serious injury including corneal burns and temporary blindness from even brief exposure. NEVER enter the crawl space while UV lights are operating. Always verify lights are OFF before entry. Wear UV-protective eyewear rated for 253.7 nm if you must work near operating UV lights. The automated timer helps prevent accidental exposure by running lights during unoccupied hours.

Ozone Production and Organic Matter Oxidation

UVC bulbs at 253.7 nm produce minor amounts of ozone as a byproduct of operation—this is normal and expected. The ozone provides additional antimicrobial benefits. You may notice an organic smell during operation; this is organic matter (mold, bacteria, dead insects) being oxidized by UV light and ozone. This smell indicates the system is actively destroying biological contaminants. Proper crawl space ventilation handles ozone levels safely.