HomeMy WebLinkAboutARB201800125 Plan - Approved 2018-09-19Led Retro 1.3.72718
Customer: Speedway
Proiect No: 388888 Scale: NIA
Date: 8/14/2018 2:16:55 PM Drawn By: Teresa Heesen
Location & Site No:SPEEDWAY #4652 1172 RICHMOND RD
CHARLOTTESVILLE, VA 22911
Detailed Information:
Standard Windload
Frame Quantity: Double Sided
Frame Size: 33"H X 61"W
Existing Cab V0: 30.5"H X 58"W
Existing Cab Slot: 1.25"D X 0.3125"W
Area: 14 SQ FT
Frame Color: Manual Entry
Detail 1, LD4 Digits
V0: 29"H X 57"W
LED Priceline 1: Red 10"
LED Priceline 2: Green 10"
Est. Crated Weight: 97 pounds
Crate HxLxW: 38x67x20"
Description: Gustor tier Approval: NOTE: Unless specified by customer, all depot of
LU M 14 RETRO 2P RG embossing will be determined by Everbrite Engineering or existing customer
speolficaffons on file. Colors and graphics on file will be used unless otherwise
spedfled by customer.
Please read carefully, check appropriate 0 Sketch OK as is
Version:1 box and fax back to Everbrite: ❑ New Sketch Required
SIGNATURE DATE
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Date: December 201h, 2017
Re: LumiDigit II Sign Illumination
To Whom It May Concern:
Everbrite, LLC produces LED signs ranging from gas price signs to message centers. We design our
products to meet and exceed our customer's expectations whether it's in its appearance,
performance or specifications. Our dedicated Technical Center works constantly with municipalities
to ensure our products adhere to the requirements set forth to ensure proper appearance along with
public safety.
One of the areas of compliance interest is the illumination of our LumiDigit II gas price sign. This
stems from the concern caused by companies producing LED signs that maintain the same
brightness throughout the day and night. This not only wastes energy but also makes the sign difficult
and dangerous to read at low light conditions such as during the evening hours.
Everbrite incorporates into its products, sensors that constantly evaluate the ambient light levels and
automatically adjust accordingly based on the parameters assigned during the sign setup. With these
sensors mounted on both sides of the sign, we can monitor and adjust the brightness levels on each
side independently. The brighter the ambient light, the brighter the LED's must be to compensate for
this higher light level otherwise the sign would be very dim or may even be perceived as being turned
off during the day. Along the same lines, when the LED's are in a too -low brightness level during the
day, the required time it takes to interpret the price increases and may cause drivers to dwell on the
sign longer than necessary.
In the 10 years of producing LED price signs and working with local jurisdictions, Everbrite has
determined that the ideal safe nit level that's easy to read and interpret are those that are between
3000 and 4000 nits during the daytime and between 500 and 1000 nits during nighttime hours when
used around ambient lighting such as street or parking lights. Our signs have a maximum intensity of
3000 — 4000 nits (cd/m2) during the day and a minimum intensity of 300 — 400 nits at night when the
intensity levels are set at the maximum and minimum levels respectively. To explain this further, our
smallest digit emits only 300 nits (cd/m2) and our largest digit emits 400 nits at night when no ambient
light is present. The factory settings are defaulted at the lowest nighttime setting to ensure we are
adequately below requirements and can be password protected to prevent end-user minipulation.
Please feel free to contact me with any questions or comments.
Sincerely,
Mark Erickson
Product Development Manager
401 South Main Street, Pardeeville, WI 53954 Phone: 608-429-2121