🌍 Full review + teardown of the Smallest 100W Global Travel Adapter (ARSMEL)
We test, stress, and tear it down to show you exactly what’s inside and whether it’s worth backing. ⚡🛠️
⭐ Quick TL;DR
Weight: 210 g ⚖️
Claimed/measured max: 100 W (measured 106 W on single C1 port) ⚡
Combined USB output: ~73 W (combined ports) 🔋
Ports: 3× USB-C + 2× USB-A (one C on main board = C1) + universal AC socket 🔌+ US Socket + 3 Plugs (EU, US, UK)
Simultaneous devices: Up to 7 devices (5 USB + 2 AC) 🔁
Protocols detected: PD 3.0, PPS, QC 4+, AFC (and other legacy protocols) 🔄
Voltage detection: Works across 100–240 V and claims support for 200+ countries 🌐
Thermals: Body 67–68 °C, USB ports up to 71 °C after 1 hour at full load — these are measured temps during testing. 🌡️
🔧 Teardown & internals (what we found)
Sliding plug mechanism & mechanical socket assembly — solid engineering but tight tolerances for some plug types. 🔩
AC detection board on the top of the bridge-rectifier board for AC sensing. 🔁
Main board: GaN power stage, large heat plate, SM transformer. 🧯
USB daughterboard: 2× C + 2× A. C1 is on the main board (highest wattage). 🔌
Safety & isolation: Y1 class capacitor, optocoupler isolation. 🛡️
Key ICs identified: GaN ICs P5145H OB2739F, PD controller IP2723T 🔎
Thermal management: metal heat plate soldered directly over the main GaN IC — still gets warm under sustained heavy load. 🔥
⚠️ Safety & practical notes
Thermal: Temperature hits ~67–71 °C under 1 hour of sustained full-load testing (100 W).
Use in well-ventilated places; avoid covering the adapter while charging high loads. 🌬️
Indian plug fit: EU plug is not fully compatible (loose fit). It still works, but treat with caution — We recommend a local converter or checking the fit before repeated high-current use. ⚠️
Cables: Always use certified cables rated for 100W+ for heavy loads. 🧵🔌
🔍 Who this is for
Travellers who want a single compact 100W hub that replaces multiple chargers ✈️
Power users who need single-port high wattage for laptops and fast-charging phones 💻📱
✅ Pros / Cons
Pros
Compact for a 100W GaN adapter 📏
Supports many fast-charge protocols ⚡
Can power 7 devices at once 🔁
Well-designed internals & safety components 🛡️
Cons
Gets hot under sustained full load (monitor usage) 🔥
Indian plug fit is not ideal (works but not snug) ⚠️
Combined wattage (Voltage) drops when multiple devices draw power ➗
Verdict: Compact, powerful, well-engineered internals — recommended for travellers and power users. ✅
🔗 Project link:
https://www.kickstarter.com/projects/arsmel/the-smallest-100w-global-travel-adapter-with-voltage-display/description
🎥 Recording Gear
Camera: Sony Alpha A6600 & Sony ZV E10 📸
Mic: Rode Video Mic Pro Plus / Zoom H5 Recorder with SSH-6 capsule 🎙️
Editing: Vegas Pro 365 ✂️
Laptop: Zenbook Pro Duos 💻
Tripod: Harison Bahubali 🎚️
💼 Business Inquiries
For business inquiries, contact: bcdtechnology@gmail.com ✉️
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🔎 What We Test in This Video — Full Timeline
0:02 — Intro 🎬
1:25 — Unboxing & First Impressions 📦✨
2:05 — Look & Design Overview 🎁
3:08 — Adapter Layout Explained 🧳
5:38 — Features: Sliding Plug Mechanism & Multi-Socket System 🔩
5:40 — Socket Compatibility Tests: India 🇮🇳, EU 🇪🇺, US 🇺🇸, AU 🇦🇺
7:24 — Plug Testing 🔌🧪
8:57 — AC Mains Voltage Detection (110V / 220V) ⚡🔍
9:55 — Charging Protocol Detection (PD, PPS, QC4+, AFC & more) 🔋✅
12:12 — Power Testing: Single-Port & Combined Outputs 🔌📊
15:50 — 1-Hour Thermal Profiling at 100W 🌡️🔥
18:45 — Real-World Charging: Phones, Power Banks, Earbuds, Soldering Station, Gadgets 📱🔋🎧🔧
19:52 — Full Teardown: Mechanical Parts, AC Detection, Bridge Rectifier, Main Board, USB Board 🛠️🧩
24:15 — Power Distribution from Plug to Socket & PCB 🔄⚡
27:05 — Internal Components & PCB Walk-Through 🔬📐
29:51 — Final Verdict & Recommendations ✅🤔
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