The challenges Installation and arrangement

If iersit is less than 30 , transition is barely perceptible,above 30 transition is blurred and low-contrast, above 40 transition is clearly perceptible,and above 50 it is obviously distracting (leads to customer complaints).

88 810 81510810101015 128 1210 1215 Cc 10 cm / Wc 10 cm / Cd 11 cm

-la coe oels with high-ott las reire coes lar- ger than c

Cc Cd W c Cc Ceiling clearanceWc Wall clearance Cd Cove depth iersit is theL
in -to-L
a ratio in L Linance canela

naires and arranging lamps.Measurement results demon-strate that the overlapping ar- rangement adopted by TETRIStechnology ensures almost per-fectly uniform light. Thismakes it the ideal solution for cove lighting. In the case of coves fitted withTETRIS models with overlapped lamps, the wall clearance canbe reduced to 10 cm. If high-efficiency lamps are used rather than high-output lamps, this improves uniformity by 30 .Lamps must be arranged sothat cool spots and hot spots overlap. The marking on thelamps must be turned awayfrom the wall. If installed verti- cally, the cool spot must pointdownwards. No room can be illuminated us-ing light from coves alone. Covelighting is used for specific de- sign and architectural features.This means that maximum pos-sible homogeneity of light is more important than efficiency.Cove lighting has to cope withconfined spaces, which makes it even more important to takeinto account the very latesttechnical lighting know-how when it comes to installing lumi-

C coewith Ma cMin ciersit barelercetible transitionC coewith Ma cMin ciersit blr-re low-contrast transi- tionCoe batten linairesno oerla with Ma cMin ciersit sharistracting high-con-trast transition Cc c iersitcc