The Wobblelight won’t leave you in the dark if some knucklehead trips over the cord — because, like an inflatable punching toy, it’s counterweighted to bounce back after it gets knocked down. Each of the four models has an impact-resistant lens cover and a shock-absorbing bulb-holder. An 85-watt fluorescent model with a light range of 10 to 25 feet costs $135, and a 400-watt metal halide model that brightens 50 to 110 feet costs $300. ProBuilt Professional Lighting, 877/707-0800,