div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentdotcagov-position-because-lumen-output-varies-in-different-lamp-orientationshtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: dotcagovposition because lumen output varies in different lamp orientations Measure the vertical distance between the lamp center and the lightmeter photocell Label this distance loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220420235e7b2bdb84795f4041057203html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentdotcagov-position-because-lumen-output-varies-in-different-lamp-orientationshtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: dotcagovposition because lumen output varies in different lamp orientations Measure the vertical distance between the lamp center and the lightmeter photocell Label this distance loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220420235e7b2bdb84795f4041057203html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentdotcagov-position-because-lumen-output-varies-in-different-lamp-orientationshtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: dotcagovposition because lumen output varies in different lamp orientations Measure the vertical distance between the lamp center and the lightmeter photocell Label this distance loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...