# Water-cool F-LED 3515 vs 7015: match the chiller, do not mix

- Source-Date (SAST): 2025-11-05 17:46
- Dest: both
- Review-after: 2027-08-31
- Status: current

## Facts

- Water-cool UV lamps (not the air-cool LED): **F-LED** is DC 45V/2.5A (3515) 100W; **F-LED/4** is DC 75V/3A (7015) 200W SL-701556B. Both need a constant-current supply and are dimmable by current.
- Matching chillers, **cannot mix**: **F-CHILLER** (3515, 220V 500W T452502) with 3515 lamps; **F-CHILLER/4** (7015, 220V 800W SS753202) with 7015 lamps. Changing the LED means changing the chiller.
- 3515 lighting area 35×15 mm; 7015 lighting area 70×15 mm. Both cure the same. Each chiller can connect up to **4** UV lights.