Zoo Med FS5-39

Download PDFFree PDF. The Save button below keeps a bookmark and private notes in your account.

Zoo Med ReptiSun 5.0 HO T5 UVB Lamp Instruction Manual

Model: FS5-39 | Brand: Zoo Med

Introduction

The Zoo Med ReptiSun 5.0 HO T5 UVB Lamp is designed to provide essential UVB and UVA radiation for reptiles in captivity. This high-output lamp is twice as strong as standard ReptiSun 5.0 lamps, delivering increased UVB output crucial for the synthesis of Vitamin D3, which in turn aids in calcium metabolism. Proper UVB exposure helps prevent or reverse Metabolic Bone Disease (MBD), a common health issue in many captive reptiles. Additionally, UVA radiation stimulates reptile vision and can encourage natural behaviors, including breeding. This manual outlines the proper installation, operation, and maintenance procedures to ensure optimal performance and the health of your reptile.

Safety Information

  • Always ensure the lamp is securely installed in a compatible T5 HO fluorescent fixture.
  • Do not operate the lamp if it is cracked or damaged.
  • Avoid direct eye exposure to the lamp when it is operating.
  • Keep the lamp and fixture away from water to prevent electrical hazards.
  • Unplug the fixture from the power source before installing, removing, or cleaning the lamp.
  • This lamp is for indoor use only, specifically for reptile habitats.

Setup Instructions

  1. Unpacking: Carefully remove the ReptiSun 5.0 HO T5 UVB Lamp from its packaging. Handle the lamp by its ends to avoid touching the glass tube directly.
  2. Fixture Compatibility: Ensure you are using a T5 High Output (HO) fluorescent fixture. This lamp is not compatible with standard T8 or T12 fixtures.
  3. Installation: Align the pins on each end of the lamp with the sockets in your T5 HO fixture. Gently push and twist the lamp until it clicks securely into place. Do not force the lamp.
  4. Positioning: Position the fixture above your reptile's habitat. The recommended distance from the lamp to the basking area will vary depending on the reptile species and the fixture's design (e.g., with or without a reflector). Consult species-specific guidelines for optimal basking distances.
Zoo Med ReptiSun 5.0 HO T5 UVB Lamp installed in a black fixture above a reptile habitat.

Image: Zoo Med ReptiSun 5.0 HO T5 UVB Lamp installed in a black fixture, ready for use in a reptile habitat.

A turtle sitting below a Zoo Med ReptiSun 5.0 HO T5 UVB Lamp in a fixture.

Image: A turtle positioned beneath a Zoo Med ReptiSun 5.0 HO T5 UVB Lamp, demonstrating proper placement for UVB exposure.

Operating Instructions

  1. Power On: Once the lamp is securely installed, plug the fixture into a suitable electrical outlet. Turn on the fixture's switch, if applicable. The lamp should illuminate immediately.
  2. Photoperiod: Provide a consistent light cycle, typically 10-12 hours per day, mimicking natural daylight hours. This can be managed with a timer for consistency.
  3. Monitoring: Observe your reptile's behavior to ensure it is basking comfortably under the lamp.
Close-up of the Zoo Med ReptiSun 5.0 HO T5 UVB Lamp with 'UVB' and 'D3 High Output' labels.

Image: Close-up view of the ReptiSun 5.0 HO T5 UVB Lamp, highlighting its UVB and D3 High Output features.

Close-up of the Zoo Med ReptiSun 5.0 HO T5 UVB Lamp with 'UVA' and 'Reptile Vision Stimulate breeding' labels.

Image: Close-up view of the ReptiSun 5.0 HO T5 UVB Lamp, highlighting its UVA benefits for reptile vision and breeding stimulation.

Maintenance

  • Cleaning: Periodically wipe the lamp with a soft, dry cloth to remove dust and debris. Ensure the lamp is unplugged and cool before cleaning. Do not use harsh chemicals or abrasive materials.
  • Replacement Schedule: The UVB output of fluorescent lamps diminishes over time, even if the lamp still appears to be emitting visible light. For optimal UVB benefits, it is recommended to replace your ReptiSun 5.0 HO T5 UVB Lamp every 6 to 12 months, regardless of whether it has burned out. Mark the installation date on the lamp or fixture for easy tracking.
A single Zoo Med ReptiSun 5.0 HO T5 UVB Lamp.

Image: A single Zoo Med ReptiSun 5.0 HO T5 UVB Lamp, illustrating the product for maintenance reference.

Troubleshooting

  • Lamp Does Not Turn On:
    • Check if the fixture is properly plugged into a working electrical outlet.
    • Ensure the lamp is correctly seated and twisted into the fixture sockets.
    • Verify that the fixture's switch is in the 'ON' position.
    • If possible, test the lamp in another compatible T5 HO fixture or test the fixture with a known working T5 HO lamp to isolate the problem.
    • The lamp may have reached the end of its lifespan and requires replacement.
  • Lamp Flickers:
    • Ensure the lamp is fully seated in the fixture. Loose connections can cause flickering.
    • Check for any damage to the lamp or fixture wiring.
    • Flickering can indicate the lamp is nearing the end of its operational life and should be replaced.

Specifications

FeatureDetail
BrandZoo Med
Model NameReptiSun 5.0 HO T5 UVB Lamp
Item Model NumberFS5-39
Light TypeFluorescent
Wattage39 Watts
Bulb Shape SizeT5 1/2
Bulb BaseWedge
Product Dimensions35.63 x 2.17 x 0.98 inches (approx. 34" L)
Special FeatureEnergy Efficient
Specific Uses For ProductReptile UVB
Voltage120 Volts
Indoor/Outdoor UsageIndoor
MaterialPlastic (ends)
ManufacturerZOO MED LABORATORIES INC

Warranty Information

This product comes with a manufacturer's warranty. For specific details regarding the warranty period and coverage, please refer to the packaging or contact Zoo Med Laboratories Inc. directly. Keep your proof of purchase for any warranty claims.

Support and Contact

For further assistance, technical support, or inquiries regarding your Zoo Med ReptiSun 5.0 HO T5 UVB Lamp, please contact Zoo Med Laboratories Inc. through their official website or customer service channels. Always refer to the product model number (FS5-39) when seeking support.

Official Website: www.zoomed.com

© 2026 Zoo Med Laboratories Inc. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.