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I had to change some exterior BR40 flood light bulbs from my pot lights 25' up and bought this plunger based on its high rating. The instructions said to clean the light bulb first before attempting to use the plunger, which I did, and proceeded to remove the bulb at an outside temperature of -1 degrees celcius. I had to press quite hard for it to grab the bulb strongly enough to unscrew. While lowering the pole the plunger lost suction and the bulb crushed down and exploded. ...I did not attempt to use this product again! It may have been due to the cold temperature and if that is the case, they should have mentioned it in the product specs so people requiring cold weather capability avoid this product. Myself I could not wait for the Summer to change my burned out lights and I did not want to climb a 24' ladder in the middle of the winter so I went to HOME Depot and bought a HDX 6 piece light bulb changer kit for $32.98 + tax. It worked perfectly and securely.