Like all ghds, the IV heats to 185 degrees, which is perfect for creating a poker straight finish, glamorous curls or beachy waves. The floating aluminium plates make the styler easier to hold and control, while also ensuring those tell-tale dents in the hair are a thing of the past. Other features of the IV Styler include a 2.7 metre cable, an automatic shut down after 30 minutes, and universal voltage.

This iron claims to heat up in 15 seconds; it also claims to use some bullshit technology that allows it to "self adjust" temperature according to hair type. Well it got warm but it sure as hell didn't heat up enough to seriously straighten or curl my hair in a mere 15 seconds--in fact, I found that it didn't ever straighten my hair enough to satisfy me.
Inferior hair straighteners take a very long time to heat, and you really need to make sure that they’re on their highest setting to have any effect. But that means getting lots of split ends, and you hair often looks frizzy, dry, and generally unhealthy. And once you go outside, if ever you live in an area that’s a bit humid the straight hair quickly goes to its default pouf settings. 
Featuring advanced ceramic heat technology, the ghd Gold Professional Performance 2" Styler is designed to operate at the optimum 365°F styling temperature for healthy-looking hair with enhanced, lustrous shine. Styling thicker, longer hair is quicker and easier thanks to the larger plates that glide through strands without snagging for fast, effortless styling and flawlessly polished strands. It heats up in as little as 30 seconds to tame frizz and transform coarse textures into sleek, smooth styles that last. The styler has contoured, round edges to unleash undulating waves, and with its styling versatility, you can change your look every day.
For me, the first and still very best of all ceramic stylers [and my dad is a hairdresser too]. It heats up fast, cools down relatively fast, works wonderfully and lasts a long time. In 11 years, I've bought two such stylers. The first one eventually died after 6 years of daily use, rarely skipping a day, while my second one is still going strong. I have no reason to recommend any other styler but this one. My hair is long and very fine. 
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