GOOD:  Even post-top ornamental fixtures, like this Salem Cutoff from GE Lighting, can be cutoff with clear panels and lamp/reflector located above.

GOOD:  The Yorktown, another ornamental from Emery Fixtures, also has clear panels and bulb located above for maximum glare and spill light control.

BAD:  Non-cutoff fixtures like this "acorn" ornamental cause light pollution.

GOOD:  Flat-lens cobra head fixtures, like this American Electric Series 125 Roadway Cutoff luminary, provide excellent roadway lighting with greatly reduced glare and no uplight.

GOOD:  This new generation of flat-lens cobra head fixture from American Electric, called the DuraStar 2000, provides superior lighting uniformity at standard mounting heights and spacings.

BAD:  The ubiquitous drop-lens cobra head luminary produces a level of glare and uplight that is both unacceptable and unnecessary.

GOOD:  Many existing dusk-to-dawn security lights and residential streetlights can be retrofitted with the Hubbell Skycap.

GOOD:  The Hubbell Skycap turns any standard NEMA head light into a full cut-off light with wide area coverage.

BAD:  NEMA head style fixtures are very inefficient, sending about 20% of the light upward and another 20% horizontally outward, creating glare.

GOOD:  Flat-lens shoebox fixtures come in many forms: square, rectangular, circular, etc. All control the light with internal reflectors. Glare and light trespass are minimalized; no uplight is produced.

GOOD:  Post-top flat-lens shoebox fixtures like this one provide good area illumination without light pollution.

BAD:  (sometimes): The telltale sag lens gives this luminary as a possible problem. If the lens is clear and very shallow, and the bulb is not too high, this type of light can cover a wider area without too much glare or uplight, but beware!

GOOD:  Full-cutoff wall packs such as this McPhilben 101 Wall Sconce make excellent entryway and building perimeter lights, and there is enough forward throw that adequate lighting is provided for near-building parking.

GOOD:  Recessed canister lights built into the eaves or canopy of a house, garage, or other building is the first choice for lighting building exteriors.

BAD:   Walls packs like this should never be used. They produce enormous glare and uplight.

GOOD:  If floodlights must be used, they should always have top and side shielding, and be pointed at least 45;deg; below the horizontal.

GOOD:  Even sports lighting can be done well if one uses cutoff light fixtures such as these from Soft Lighting Systems.

BAD:  Unshielded floodlights provide a trashy "prison yard" look and should not be used.