Description from Thomann :
- HSW 400 E40 Blacklig UV400
- Suitable for 400W UV spots and floodlights with E40 socket
- 400 Watts
- 135V Ignition voltage
- 20 lm light output
- Approx. 2000 h life
- These bulbs can only be ignited with a suitable ballast unit
- This bulb is designed for use in stage and theatre applications.
- This bulb is not suitable for room lighting in households.