Abstract: Many individuals in wheelchairs are struck by motor vehicles while crossing roadways. Usually motorists fail to see them. This invention provides for a warning lamp apparatus for a wheelchair comprising: a mounting base adapted to be slidingly received and removed from the upper rear portion of the wheelchair; an upright support member extending from the mounting base; a lamp mounted on the top portion of the upright member; an umbrella support arm connected to the mounting base and a power supply means to illuminate the lamp. A preferred aspect of this invention provides for an apparatus as above wherein the mounting base is a generally horizontal U shaped member having a box connected thereto and the U shaped member slidingly received in a rear upper portion of the wheelchair. The box is adapted to carry the umbrella support arm and provide accessory storage for the rider.