FREQUENTLY ASKED QUESTIONS

Here are the answers

There is a big interest in our products and our company – which makes us very happy. The greater the interest, the more questions there are. That's why we have summarized the most frequently asked questions here in a FAQ – true to the motto “Good to know”. Are you interested in a specific topic? Then you can narrow down all relevant questions on this topic by clicking on the relevant keyword.
What should I keep in mind when changing the gobo?
„When removing the clamping ring, make sure that the gobo doesn’t get scratched. When inserting glass gobos, make sure that the matte white coated side is facing the lens. Gobos that must not twist, such as logos, should be additionally secured against twisting with a drop of silicone adhesive. When using original JB gobos, the markings on the gobo, gobo holder and gobo wheel must be observed! You can find precise instructions in the manual, Chapter 8.2. For other questions, feel free to contact our service department directly.“
Are other, custom gobo motifs possible?
„Yes, upon request and depending on the motif, but only in black and white. The requested motif must be sent as a vector graphic, preferably in DXF format (.dxf). If necessary, or for further questions, feel to contact Benjamin “Benni” Simeg from the service team directly.“
How can I get replacement gobos?
„Just send an email to our tech support. Benni and Roland will be glad to help you.“
How can I get replacement gobos?
„Just send an email to our tech support. Benni and Roland will be glad to help you.“
What advantages does slide-in technology give me?
„Service, cleaning and gobo changes can be done much more quickly and conveniently than without it, since all inserts can be removed and reinstalled without tools and without manually disconnecting the cable.“
What advantages does slide-in technology give me?
„Service, cleaning and gobo changes can be done much more quickly and conveniently than without it, since all inserts can be removed and reinstalled without tools and without manually disconnecting the cable.“
Mercatorhalle Duisburg invests in P15
As one of the most important event venues in the Ruhr area, the Mercatorhalle offers space for concerts, conferences, and high-profile events.
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VLLV e.V. quarterly meeting at JB-Lighting
On September 16, 2025, we welcomed around 40 members of the Association of Lighting Designers and Media Operators (VLLV e.V.) to our venue in Blaustein.
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Blue light seminar
Early September, an inspiring blue light seminar took place at the Hellerau Theater in Dresden, organized by TAL Chemnitz together with HAW Hamburg
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Vocational School Classes Visit JB-Lighting
Early July, we had the pleasure of welcoming three vocational school classes specializing in event technology
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