Mike Holt feature comparison (review 7)

What Mike Holt Is, And What It Isn't

Mike Holt Enterprises built its reputation on training. Books, videos, illustrated guides, exam prep, continuing education. If you came up through the trade in the last twenty years, you probably studied from one of his graphic textbooks or sat through a Code change class taught off his slides. That's the core product, and it's good at what it does.

What Mike Holt is not, at least not primarily, is a fast field lookup tool. The app ecosystem around the brand leans toward study material, quizzes, and reference PDFs. Useful on the couch the night before a Code exam. Less useful when you're standing in an attic with a hot panel open and need to know the exact ampacity correction for four current carrying conductors in 120 degree ambient.

Depth of Explanation

Where Mike Holt crushes it: explaining the why. Load calculations, grounding versus bonding, service entrance sizing, the stuff that confuses apprentices for years. The illustrations are legendary. If you want to actually understand 250.30 or 310.15(B), the Holt materials will get you there.

Ask BONBON doesn't try to compete with that. When you ask BONBON a question, you get the Code answer, the article citation, and the reasoning in a few sentences. Not a chapter. Not a 40 minute video. The goal is to get you back to work, not to teach you the trade from scratch.

If you're prepping for your Master's exam, buy the Holt books. If you're on a jobsite and forgot whether NEC 210.8(F) requires GFCI on outdoor outlets for dwellings, pull out your phone.

Speed On The Job

This is where the comparison gets lopsided. Holt's reference apps and PDFs are searchable, but you're still navigating a table of contents or scrolling through a document. Three or four taps before you see an answer. For a question you already half know, that's slow.

BONBON is built around one input box. Type or talk. Get the answer with the citation. That's the whole interaction. A few examples of what that looks like in practice:

• "Max OCPD for 4/0 copper THHN in conduit" returns the ampacity from NEC 310.16 and the 240.4(B) rounding rule in one response.
• "GFCI required for dishwasher" cites NEC 422.5(A)(7) and notes the 2023 cycle change.
• "Working clearance 480V panel" pulls 110.26(A)(1) with the table distances.

Holt will get you the same citations, eventually. BONBON gets you there in about five seconds.

Code Cycle Coverage

Both tools track the NEC, but they handle cycle changes differently. Mike Holt publishes new editions of the Understanding the NEC series with each three year cycle, and runs Code change seminars. You buy the new book or take the class. Good content, but static once printed.

BONBON updates continuously. When your AHJ is still on 2020 and the next town over adopted 2023, you can ask which cycle applies and get the right answer for your jurisdiction. State amendments to articles like 230.85 or 210.8 get flagged when they diverge from the base Code. That's hard to do in a printed book.

Price And Access

Holt's full library runs into real money. Individual books are reasonable, but the complete Understanding series, exam prep, and video bundles add up fast. For a shop owner training apprentices, it's worth every dollar. For a journeyman who just wants Code answers on the truck, it's overkill.

1. Mike Holt complete exam prep package: several hundred dollars, one time, plus new editions every cycle.
2. NFPA 70 NEC handbook: around 200 dollars per cycle.
3. Ask BONBON: monthly subscription, cancel anytime, updates included.

Different tools, different price models. Neither one is wrong, they solve different problems.

Who Should Use What

If you're an apprentice, a Code instructor, or studying for a license exam, Holt is still the gold standard for learning. The depth is unmatched and the teaching style works. Buy the books, watch the videos, show up to the seminars.

If you're a working electrician who already knows the trade and needs fast answers in the field, a reference app wins. You don't need someone to explain grounding for the hundredth time. You need to confirm a lug size or a box fill calc before the inspector pulls up.

Honest take from twenty years in the trade: I still have my Holt books on the shelf at the shop. I don't bring them to jobs anymore.

Most guys end up using both. Holt for the classroom and the winter study sessions. A fast lookup tool for the truck. They're not really competitors, they're different parts of the same toolkit.