How much for a mac book

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* If anything needs that protection, then everything needs that protection.* Protection is always about where hundreds of thousands of joules harmlessly dissipate. Your concern is a rare and destructive transient that can overwhelm protection inside a Mac and all other household appliances.

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IOW best protection at a Mac is already inside the Mac. Surges that are hundreds of joules will even be converted by a Mac into rock stable, low DC voltages to safely power its semiconductors. Destructive surges can be hundreds of thousands of joules.

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It is called hearsay or junk science reasoning.Īdd facts. Because someone said you need 600 joules, that proves you need 600 joules.