SPECIFICATIONS FOR

LEDLIGHTSIGN™
EDGE LIT L.E.D. STREET NAME SIGNS

DESCRIPTION - Light Emitted Diodes (L.E.D.) Edge Lit Internally Illuminated Street Name Signs.

This specification shall govern for L.E.D. Edge Lit Internally Illuminated Street Name Sign attached to the traffic pole or wire span, as recommended. All materials used in fabrication shall be new and of excellent quality.

MECHANICAL SPECIFICATIONS

Sign Dimensions:

1. The L.E.D. Edge Lit Internally Illuminated Street Name Sign shall be capable of being constructed in standard length from 4' up to 8' lengths.

2. The height of the sign shall be a minimum of 12" and a maximum of 24" for viewing of up to 600 feet away with a 10" Highway Gothic letter height.

3. The sign will be a maximum depth of 2" for single-sided and double-sided on all four sides.

Environmental Requirements:

1. The sign fixture shall be designed and constructed to prevent deformation or failure when subjected to 110 mph wind loads in conformance with the requirements of the AASHTO 1 publication, "Standard Specifications for Structural Supports of Highway Signs, Luminaries, and Traffic Signals" and with all other associated and updated amendments.

2. The sign fixture should be able to withstand and operate at temperature extremes of -40 degrees to 140 degrees F.

3. The sign fixture should be able to withstand salt spray moisture.

MATERIALS

1. All materials furnished shall be in accordance with the NEC.

2. Sign shall have single-sided or double-sided message. The background shall be translucent diamond grade reflective sheeting with a white, letter.

3. All interconnections between L.E.D. Light Modules should be hard soldered connections to eliminate thermal fatigue and micro cracking associated with power cycling.

WARRANTY, MAINTENANCE AND SUPPORT

All manufacturers guarantees and warranties which are normally provided as customary trade practice for items and materials incorporated into the work. All materials have warranty including led and driver for (5) years.

HOUSING

The extrusion/housing is made from 6053-T5 aluminum and is 2 9/16' X 1 5/16". The top section of the extrusion has two (2) fins which are 5/16" thick X ½" wide. The fins serve two purposes, one is to give strength and rigidity over long lengths and second, to help deflect heat away from the L.E.D.s. Light engines are mounted inside the channel by stainless steel screws. The thickness of material where the screws are mounted is a ½" thick. This will also help to deflect the heat and rigidity. The other side of the extrusion is left open to accept our plastic unit. The dimension on this is; 1' X 11/16" deep. Plastic slits on two (2) 1/8" X ¼" rails. These rails have a 15 degree angle to them. Angles are there to direct more of the light into the plastic. Light engines slide into a ¾" X 1" area of the extrusion. This area also has a 3/16" half circle designed to run wiring through.

SIGN PANELS

1. The entire surface of the sign panel shall be evenly illuminated.

2. The sign panels shall be translucent of high impact, UV resistant plastic/acrylic material able to withstand 5 years of 500nm UV light. All surfaces shall be free of blemishes in the plastic and coating that might impair the service or detract from the general appearance and color matching of the sign.

3. Sign faces must be able to be removed from sign with out opening sign and can be changed while still installed on pole.

HARDWARE

1. The sign can be mounted to a rigid mast and/or span wire.

2. All fasteners and screws in or on the fixture, shall be stainless steel type 302 or 305.

ELECTRICAL

Light Source:

The L.E.D. Edge Lit Internally Illuminated Street Name Sign modules shall be composed of 1-watt L.E.D.'s with a minimum viewing angle of 110 degrees mounted on rugged metal boards consuming no more than 4.8 watts per linear foot. With a thermal resistance path from the L.E.D. to the most external surface of the aluminum extrusion, of no more than 20 degrees per watt at an ambient temperature of 25 degrees Celius to reduce wear and tear on the individual L.E.D.'s and to extend usuable lifetime. The L.E.D. light modules should be sufficient coupled directly to the aluminum extrusion using stainless steel mounting screws from top of extrusion. The light panel redirects the light to create a uniform illuminated panel with a minimum candelas per metered squared of 50 nits at initial turn on and no less than 15 nits after five (5) years. For each linear foot of the sign, a combination of one (1) L.E.D. light module shall be used.

L.E.D. SYSTEM

L.E.D. Housing:

Anodized Aluminum Extrusion, black. Threaded mounted holes for #8 screw on back-side spaced every 10 inches.

OPTICAL System:

L.E.D. assembly shall have linear collimating optic with an emitting angle of 30 degrees +/- 5 degrees. The optic shall be manufactured of optically clear acrylic. The optic shall be sealed to the L.E.D. housing via a clear urethane.

L.E.D. Assembly:

1. The L.E.D. assembly shall consist of one (1) or multiple MCPCB (Metal Clad Printed- Circuit Boards), that are designed specifically to spread from high brightness L.E.D.s. The MCPCBs Shall have a white solder mask and an aluminum substrate. L.E.D.s shall be Lumileds Luxeon L.E.D.s and shall be spaced 3" on center. The L.E.D.s shall be wired in series to promote even illumination. The L.E.D. assembly shall be designed such that multiple MCPCBs shall be plugged together to reduce wiring and connections within the L.E.D. housing. The L.E.D. assembly that is located at the end of the L.E.D. housing shall have 6" wire leads with water resistant faston connectors for ease of installation and replacement.

2. L.E.D. assembly length shall be determined based on the overall length of the signs. Should the sign be approximately 8' in overall length, 246.5" L.E.D. system shall be used to provide illumination. Should the sign be approximately 4' in overall length, 146.5" L.E.D. system shall be used.

3.The ends of the L.E.D. housing extrusion shall be plugged with rubber end caps and potted to eliminate the possibility of water intrusion.

DRIVER SYSTEM

The L.E.D. System shall be illuminated with a waterproof exterior Driver Box for easy termination. The Driver System shall consist of the following:

Driver Housing:

1. The Driver Housing shall provide waterproof sealing in the form of a gasket and cover. Wires shall enter the Driver via 2 Nylon Strain Relief. The Driver Housing shall accommodate a built-in photocell that protrudes through the side of the Driver Housing. The photocell shall have a delay.

Electrical:

AC to DC power supply: the power supply shall have a universal input voltage (90 to 264VAC) and an input frequency range of 47 to 63 Hz. The power supply output shall be 36VDC. The power supply shall be UL recognized and shall have TUV and CE certifications.

The Driver System: In order to properly and safely illuminate the L.E.D. System, multiple Drivers shall be soldered to a PCB (Printed Circuit Board), that is installed within the Driver housing. The PCB shall be wired and powered by the AC to DC Power Supply. The Driver System shall provide a 350mA constant current ouput with a max output voltage of 34V. Each individual Driver shall illuminate no less than 8 Lumileds Luxeon L.E.D.s at 350mA.

Wiring: The output wire that will connect to the L.E.D. System shall be a multi-conductor cable that is rated for direct burial, outdoor rated, UL listed and terminated with water resistant connectors that mate with the L.E.D. System for ease of installation.