24. October 2017 Questions regarding light source for Zahner tune-able light sources? Zahner has two versions of tune-able light sources: TLS03 and the TL03/uv, The TLS03 goes to 365 nm whilst the TLS03/uv goes to 295 nm. Zahner Photoelectrochemistry Technologies Contact ZP about photoelectrochemistry technologies tagPlaceholderTags: