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Information Sheet Number 122 (May 1997) <br />International Dark-Sky Association <br />3545 N. Stewart. Tucson, AZ 85716-1241 USA <br />SavcOurSky@aol.com http;//www.darksky.org <br />Examples of Good and Bad Lighting Fixtures <br />GOOD Even post-top <br />ornamental fixtures, like <br />this Salem Cutoff from <br />GE Lighting, can be <br />cutoff Vf'ith clear panels <br />and iamp/reflector <br />located above. <br />GOOD Flat-lens cobra <br />head fixtures, like this <br />American Electric <br />Series 125 Roadway <br />Cutoff luminaire, <br />provide excellent <br />roadway lighting with <br />greatly reduced glare <br />and no uplight. <br />M <br />fm <br />ir - . <br />GOOD Many existing <br />dusk-to-dawn security <br />lights and residential <br />streetlights can be <br />retrofitted with the <br />Hubbell Skycap. <br />□ <br />I I <br />GOOD TheYorklown, <br />another ornamental <br />from Emery Fixtures, <br />also has clear panels <br />and bulb located above <br />for maximum glare and <br />spill light control. <br />GOOD This new <br />generation of flat-lens <br />cobra head fixture from <br />American Electric, <br />called the DuraStar <br />2000, provides superior <br />lighting uniformity at <br />standard mounting <br />heights and spacings. <br />GOOD The Hubbell <br />Skycap turns any <br />standard NEMA head <br />light into a full-cutoff <br />light v/ith wide area <br />coverage. <br />r .> vv <br />• o'; <br />'‘'■T'l'-" <br />' ■ ■- ••• <br />- ■ # . • r’ <br />BAD Non-cutoff <br />fixtures like this <br />“acorn” ornamental <br />cause light pollution. <br />BAD The ubiquitous <br />drop-lens cobra head <br />luminaire produces a <br />level of glare and <br />uplight that Is both <br />unacceptable and <br />unnecessary. - <br />BAD NEMA head style <br />fixtures are very <br />inefficient, sending <br />about 20% of the light <br />upward and another <br />20% horizontally <br />outward, creating glare.