A photograph of a tidy cable reel can conceal most of the cable and part of the information you need. Before buying one for the garage or garden, ask to see its label and the entire cable. A large wattage in the advertisement is not enough to decide whether the reel suits your work.
Record both ratings
Brennenstuhl distinguishes wound and unwound power limits and recommends fully unwinding the cable. Ask for a sharp photograph showing both values and their symbols. Copy each value with its corresponding state, rather than saving only the larger number. Use the instructions to resolve unfamiliar markings.
Match the label's model reference to the offered reel. If the label is missing or unreadable, do not borrow ratings from an online photograph of a similar product. Ask the manufacturer to identify the model or choose a better-documented example. Keep the label photograph alongside the advertisement.
Describe the intended job
List the equipment you expect to connect at the same time and check its input ratings. Brennenstuhl's selection guide considers the combined load and intended environment. Socket count does not mean each outlet has an independent allowance. If the ratings or equipment requirements are unclear, ask a qualified electrician rather than guessing from motor size or marketing claims.
Measure the actual route before choosing cable length. Include the path around obstacles, and plan where the unused length can lie without becoming a trip hazard. Outdoor labelling does not authorise leaving plugs or connections in puddles; follow the model's permitted conditions.
Inspect the disconnected cable
Arrange a check with the reel unplugged. Have the seller unwind its full length so you can inspect sections normally hidden on the drum. Look for damaged insulation, taped repairs, crushed areas and damaged plugs or sockets. Ask whether the cable or plug has been replaced.
If damage or a questionable repair appears, do not test it under load. Seek a competent assessment or decline the purchase. A neat exterior and a lamp lighting up do not establish electrical safety.
Keep protection intact
Keep the instructions with the reel so the next user can check its limits. Never bypass or hold down a protective device to keep working. Repeated tripping needs investigation, not repeated resetting. Keep the model details and inspection notes so the next decision is based on the actual reel, not its colour or advertised maximum.