Wobble Light, self-righting work light that bounces back from abuse! Bright, durable, and virtually indestructible; the 36" tall Wobble light is a self-righting, highly durable work light that takes a severe beating from workers, vehicles, debris and drops. Shock absorber protects bulb from strikes and jarring. Internal ventilation system keeps light cool enough to touch. String them in series or use individually. No set-up. Just plug it in.