Lightolier Vision Smart Parabolic VRB Series دليل المستخدم

ملخص المحتوى في الصفحة رقم 1

VISION SMART PARABOLIC (VRB) VRB SERIES 1'x4'
Page 1 of 2 1'x4' SURFACE BOX FLUORESCENT, 3" DEEP PARABOLIC LOUVER
IES RP1 FOR NORMAL VDT USE, 1 OR 2 LAMP T8, T12
Features
• 1 lamp 8 or 12 cell, 2 lamp 16 or 24 cell meet IES RP1 for lighting
VDT areas with normal use.
• Only 5-1/2" deep body.
• Efficiency 66% (1 lamp 8 cell).
• 1.9 spacing mounting ratio.
• Welded 20 gauge steel body.
• 45° mitered corners (body).
• 3" deep cell aluminum parabolic louver.
• Spring-loaded latches.
• Reversible lou

ملخص المحتوى في الصفحة رقم 2

VISION SMART PARABOLIC (VRB) VRB SERIES 1'x4' Page 2 of 2 1'x4' SURFACE BOX FLUORESCENT, 3" DEEP PARABOLIC LOUVER IES RP1 FOR NORMAL VDT USE, 1 OR 2 LAMP T8, T12 LER = FP - 25.9 IW - 63.8 BF - 0.88 PHOTOMETRY MODEL NO. VRB1S8LS132120SO Comparative yearly lighting energy cost per 1000 lumens = $9.26 coefficients of utilization — zonal cavity method RF 20 20 20 RC 80 50 30 RW 70 50 30 50 30 10 50 30 10 173 71 69 67 65 64 64 63 62 268 64 60 60 57 55 58 56 54 363 57 52 54 50 47 52 49 47 458 51 46 4