LED Fluorescent Writing Board will work during the day and night. The LED Flashing board is especially dazzling in a dark environment. It is most often used in restaurants, shopping mall, coffee shops, bars, nightclubs or in any public place. They are ideal for advertising daily specials, drink specials, upcoming events or promotions. This flashing led board allows you to write with a marker pen and is perfect for attracting new customers to your business. For example the board may influence your customer's decision towards a special meal or drink or other service your business offers that you list on the board.