There may be some slight wear on the outer box, but each device is still sealed in its inner plastic package.

Information from the manufacturer:

Designed for a 20-year operating life with superior inrush current and surge-protection features,
the DLL Elite photocontrol supports the extended life and low maintenance benefits associated
with LED fixtures.

Design Details:

• LED inrush protection with TRIAC assisted relay
• Extreme surge protection of 1280J/40kA utility or 2120J/40kA UL listed
• Double thick enclosure and lens with additional UV inhibitor
• High temp base plastic tested to 140~176;C
• Long life capacitors
• Full wave rectified power supply
• Dual zener diodes for long life
• Solid brass contact blades
• Double-sided, thru hole plated .062 FR4 circuit board
• Conformal coated printed circuit board
• Sealed packaging for extended storage
• Low-profile housing available for decorative fixtures

Specifications:

• A+ Capable                       Yes
• Control Device Type        Photocell
• Mounting Type                Fixture Attached
• Product Type                   Photo Control
• Application Type             Automotive & Parking, Roadways, Bridges & Tunnels