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Description
Solar Powered Sound-light Alarm Warning Light IP65 Waterproof 110 dB Burglar Alarm1. 5V 0. 6W polysilicon solar panel, fast charging speed, and high conversion efficiency. 2. 6 flashing red light beads, visible at 1000 meters, 110 dB alarm volume, can be heard within 1000 meters. 3. Full Charged for 30 days standby, or alarm more than 300 times. 4. 110 degree sensing angle, 5 8 meters sensing distance. 5. 3. 7V 400mAh lithium battery. 6. ABS material, high hardness, IP65 waterproof and anti corrosion. Specification: Package Weight
1. 5V/0.6W polysilicon solar panel, fast charging speed, and high conversion efficiency.2. 6 flashing red light beads, visible at 1000 meters, 110 dB alarm volume, can be heard within 1000 meters.
3. Full Charged for 30 days standby, or alarm more than 300 times.
4. 110 degree sensing angle, 5-8 meters sensing distance.
5. 3.7V / 400mAh lithium battery.
6. ABS material, high hardness, IP65 waterproof and anti-corrosion.
Specification:
| Package Weight |
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4.9 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 4
Good so far.
Format: Paperback
I will be using these heavily in a month or two, I ordered them because they were on sale so I will come back and edit once I actually read the material, use the glossary, online tools, etc.
However from out of the box? All the books are in perfect condition, no sticking pages like other reviews. I will say if you can afford the hardcover version with the labs? Get those.
From touching them once or twice so far, this book will not stand up to constant use. It's a really flimsy type.. not even sure if it's paper? It feels like plastic paper.
I will also add that that study guide book is F A T . I wish they would have split it into two. I bet the hardcover is gigantic because mine looks like the biggest dictionary you've seen, and I know the cover page which is almost exactly like the pages? Will be ruined once it starts being used consistently.
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Reviewed in the United States on December 16, 2022
★★★★★ 5
As described
Format: Paperback
As described - I'm happy
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Reviewed in the United States on July 28, 2025
★★★★★ 5
Very Useful
Format: Paperback
I used these for my A+ exams and I didn’t really end up reading the material. I more so used them for their practice exams. That’s only because there’s a lot of information to digest and I was in a rush to take the exams. I still passed so I find that they are well formatted. The questions imo needs to be read more throughly than the exam questions themselves.
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Reviewed in the United States on October 24, 2024
★★★★★ 5
Amazing study tool
Format: Paperback
Perfect for the exam goes along with the actual course 👌
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Reviewed in the United States on March 12, 2025
★★★★★ 5
Details I mok
Format: Paperback
I like the explanations, but I don’t like small print, particularly for older people
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Reviewed in the United States on December 20, 2023