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Efficacy (lpw) Base Up ± 15º–Enclosed Luminaires Only Note: Pulse Start Metal Halide is Designed for Operation on Only Approved Ballasts with Metal Halide Pulse Ignitors. MS750/BU/BT37/PS M149/E 135400 Pulse Start Metal Halide BT-37 Clear Mogul Screw 11 1/2'' (292mm) 7.0'' (178mm)
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4) Before lamp installation/replacement, shut power off and allow lamp and fixture to cool to avoid electrical shock and potential burn hazards. 5) Use only auxiliary equipment meeting Philips and/or ANSI standards. Use within voltage Limits recommended by ballast manufacturer.