Thanks go to Jim Morse for his useful tips on the low energy fluorescent uplights used to light the main ceiling and side aisle ceilings at Salisbury Cathedral:

“Firstly we chose Osram T5 high output lamps with 2700K colour temperature. If you go to www.osram.com you can get the full spec of these lamps designated FQ. We then chosen luminaires manufactured by Norka gmbh and called ‘Erfurt’.

“These have very accurately manufactured parabolic reflectors in either medium Beam or narrow beam configuration. We used narrow beam units and this resulted in excellent distribution across the vaulted ceilings for relatively low energy usage compared with incandescent sources.

“This for the moment seems to be the best way of doing large scale uplighting or wall Washing, provided you can hide the lights as they are not pretty! They are also dimmable via a 1-10v signal, although this only goes down to about 1% and then just goes off.”

This entry was posted on Tuesday, July 1st, 2008 at 3:07 pm and is filed under Low Energy Lighting. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.