The American Recorder OAS-2019M-BL 'Do Not Enter - Lesson' LED lighted sign in blue is a must - have for schools, tutoring centers, and teachers. During lessons, it clearly signals 'Do Not Enter'. Our unique LED design with twin - lenses ensures even illumination across the whole sign, no hot spots or dim edges. When on, it's bright, crisp, and eye - catching. When off, the lens panel looks almost blacked out. It uses 20 bright white, high - efficiency LEDs for long - lasting service. These LEDs have 120 - degree dispersion and are evenly spaced, giving the brightest and clearest visibility. The sign's enclosure is made of steel and aluminum with nice curved edges and a durable flat - black powder - coated finish. It's super easy to install in minutes and comes with a 25 - foot extension cable, power supply, and mounting hardware. There's also an optional flash module. The LED lights can last up to 50,000 hours. It measures 9' (L) x 5.5' (H) x 1.5' (D).




Using this sign is a breeze. First, find a suitable location in your educational facility, like outside a classroom. Then, use the included mounting hardware to install it. Connect the power supply and the 25 - foot extension cable. When lessons start, simply turn on the sign. Remember, the optional flash module can be added for extra attention. As for maintenance, keep the sign clean with a soft, dry cloth. Avoid using abrasive cleaners as they might damage the powder - coated finish. Since the LED lights last up to 50,000 hours, you won't need to replace them often. But if you do notice any dimness or malfunction, contact customer support for assistance.