Boyu · UV clarifier
Submersible UV Steriliser
- UV lamp
- 4–20 W
Knocking out a green water bloom or running in a sump on a larger system.

SunSun · UV clarifier
A submersible UV-C lamp that sits in the tank or sump, from 3 to 14 W, rated for 500 to 2,600 litres. Most sizes come with a shade to block visible glare.
Updated
Tanks or sumps with green water or where you want to cut free-floating bacteria.
UV-C can harm eyes and degrade some plastics; never look at the lit lamp and keep it shielded.
| Model | Tank size | UV lamp | Dimensions (L × W × H) |
|---|---|---|---|
| AUV-03A | up to 500 L | 3 W | 8.5 cm long |
| AUV-06A/B | up to 1,000 L | 6 W | 23 cm long |
| AUV-08A/B | up to 1,400 L | 8 W | 23 cm long |
| AUV-10A/B | up to 1,800 L | 10 W | 28 cm long |
| AUV-12A/B | up to 2,200 L | 12 W | 28 cm long |
| AUV-14A/B | up to 2,600 L | 14 W | 28 cm long |
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Boyu · UV clarifier
Knocking out a green water bloom or running in a sump on a larger system.
Eheim · UV clarifier
Planted tanks prone to green water, or anyone wanting a bit of extra clarity and pathogen control.
Eheim · UV clarifier
Larger planted tanks where you want UV only for set hours, or want it tied into an Eheim digital setup.
Oase · UV clarifier
Canister-filtered tanks prone to green water, or keepers who want an extra safeguard against outbreaks.
Quick answers about the SunSun AUV UV-C Lamp, drawn from its specs.
The maker rates it by model: AUV-03A up to 500 L, AUV-06A/B up to 1,000 L, AUV-08A/B up to 1,400 L, AUV-10A/B up to 1,800 L, AUV-12A/B up to 2,200 L, AUV-14A/B up to 2,600 L.
Tanks or sumps with green water or where you want to cut free-floating bacteria.
UV-C can harm eyes and degrade some plastics; never look at the lit lamp and keep it shielded.
Other uv & sterilisers worth comparing: Boyu Submersible UV Steriliser, Eheim reeflexUV, Eheim reeflexUV+e. Add any of them to the compare table to see the specs side by side.