Why were full cutoff street lanterns required on California freeways? « on: October 19, 2020, 08:26:44 PM » Author: WorldwideHIDCollectorUSA
Before California changed out its HPS and MV freeway lanterns to LED, I wonder why most of the lanterns were full cutoff? Before LED street lights existed, I observed that most California freeway lanterns that had a drop lens had a glareshield on them. Otherwise, if the freeway lanterns did not have glareshields, they were mostly full cutoff lanterns with flat bowls. The only exception I noticed with this situation was the I-710 freeway in the Long Beach, CA area.
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	Re: Why were full cutoff street lanterns required on California freeways? « Reply #2 on: October 19, 2020, 08:42:19 PM » Author: WorldwideHIDCollectorUSA
I wonder why there was a high concentration of drop lens lanterns without glareshields near the southern terminus of I-710 in Long Beach, CA?
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: Why were full cutoff street lanterns required on California freeways? « Reply #5 on: October 19, 2020, 09:55:57 PM » Author: WorldwideHIDCollectorUSA
Quote from: takemorepills on October 19, 2020, 09:45:08 PM Probably just simply trying to limit light pollution. On main roads and side roads, there were and still are plenty of lanterns that had drop lenses without glareshields too
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.