Clip-On GKM3W

- Product size: UV Clip 3.4" x 1.8" x 1.8"
- Input: 120V 60Hz
- Power: 3W
- Suitable for aquarium: <20 Ga. (for larger aquariums, please check our 9W and 24W unit from below at "Related Products").
- Product Safety: UL and CUL listed.

Q: Is there a way to replace the bulb?
A: No, the unit is a modular design made to be replaceable as a single unit, making it less wasteful than competitive units that require frequent part replacements. UV light wears away plastic housings, so your safety is secure as the housing is 100% with every unit.

Q: How do I know when the bulb is dead?
A: There is a GREEN LED on the control box. If the LED is ON, it's good. When the LED is OFF, it's time to replace the UV unit.

Q: How long does the unit last in service?
A: In normal use bulbs typically last about 6-9 months in constant use. Some bulbs can last up to a year. To lengthen the service of your bulb, we suggest once your water is sparkling clear for 7 full days, start using your UV on a limited as needed basis: use with your light timer, only on weekends, etc.

Q: Water from my filter seems to be too strong for this - is it OK?
A: YES ! Only a small portion of filtered water has to go through the UV. Slow water flow in & out is key to making your UV unit efficient. Over time, all your water will go through the UV unit, and it may take a few days to totally clean up your aquarium.

Q: How come my bulb looks old with dust all over it?

A: If you notice a slight whitish powder on the surface of your GKM, simply rinse it off. This powder is due to the special high-performance plastics we use that withstands the intense UVC bulb in the GKM.