• Meets AREMA and Transport Canada standards for Safety Assurance • Side Lights available in both red or white for extra safety and visibility • Multiple power supply options available • Low wattage ensures longer battery backup life cycle • Easy to retrofit • Excellent moisture and dust resistance • Eliminates the appearance of “phantom signal” • Robust hard-coated and UV-stabilized polycarbonate lens for increased longevity against the elements • Maintains 70% of the 100,000小时操作后的初始管腔强度•5年有限保修