This warning high voltage keep locked sign serves as both a deterrent to unauthorized personnel, and a reminder to keep the area secured. Durable and rigid plastic construction. Manufactured in the UK by Jalite. Solid white background with blue, yellow and black imprint. Left side features a danger arrow inside a yellow triangle and the words, “High voltage” The right side has a blue circle with text inside that reads, “Keep locked shut when not in use” Below the circle is an exclamation mark and the words, “Think safety” Measures 100mm x 150mm. Glow in the dark, photoluminescent coating. Affixes to most using surfaces using any common adhesive.