Hubbell ev4di led compact white emergency unit, 1w led heads, self-diagnostics, remote capacity designed for fast wall mount installation & reliable service, flame-rated uv stable thermoplastic housing w/ lightly textured white finish, integral led lamp-heads are fully adjustable, provides 90 minutes of emergency lighting, includes nickel metal hydride (nimh) battery, 120-277v, damp location listed, includes spectron self-diagnostic option