Radium HRI Lamps #510025 is German made Radium 10,000K provides great coloration and intensity. These bulbs bring out vibrant fluorescent pigments in corals greatly. They can benefit marine flora and sea animals. A magnetic pulse start, HQI, or electronic ballast is needed to ignite this lamp. The bulbs will burn “bluer” if an electronic or pulse start ballast is use in conjunction with them.
- Promotes marine life in a tank
- 150 Watts
- Double Ended Base
- M81 Ballast