70W GaN Wall Charger with TFT Display Retractable Cable – 2 USB-C + 1 USB-A, PD3.1, Real-Time Voltage/Current/Power Monitor

70W GaN wall charger with smart TFT display (power/temperature/time), 2 USB-C + 1 USB-A ports, PD3.1 fast charging, and intelligent power distribution. 80% charge for iPhone 16 in 30 min. OEM/ODM customization available.

Product Description

Power up with complete visibility. This 70W GaN Charger features a multifunctional real‑time TFT display that shows cumulative usage time, internal temperature, and the actual power output of each connected port – so you always know exactly what’s happening.

Powered by advanced GaN (Gallium Nitride) technology, this compact 3‑port charger (2 USB‑C + 1 USB‑A) delivers up to 70W PD3.1 fast charging. It can charge an iPhone 16 Pro to 80% in just 30 minutes or power a 16‑inch laptop at full speed. With intelligent current distribution and comprehensive safety protections, it is the perfect travel‑friendly companion for your laptop, tablet, phone, and earbuds – all from a single, sleek device.

 

Technical Specifications

Parameter Details
Model LK137
Product Type 70W GaN Wall Charger with TFT Display
Total Output 70W (Max)
Ports 2 × USB-C (C1, C2) + 1 × USB-A
Display TFT screen – cumulative usage time, temperature, actual power per port
Fast Charging Protocols PD3.1, PD3.0, QC3.0, QC2.0, PPS
Input 100–240V ~ 50/60Hz, 1.6A Max (global wide voltage)
Dimensions 57 × 51 × 56.9 mm (L×W×H)
AC Cable Length 60cm
Housing Color Black / White
Safety Protections Over-voltage, over-current, short-circuit, over-temperature, over-power
Certifications CE, FCC, RoHS (compliant)

 

Port Output & Smart Power Distribution

Single-Port Output (Max)

Port Max Output Supported Protocols
USB-C1 70W PD3.1, PD3.0, PPS, QC3.0/2.0
USB-C2 45W PD3.0, PPS, QC3.0/2.0
USB-A 20W QC3.0, QC2.0

Multi-Port Power Distribution

Configuration C1 C2 A Total
Two Ports (C1+C2) 45W 20W – 65W
Two Ports (C1+A) 45W – 18W 63W
Two Ports (C2+A) – 20W 15W 35W
Three Ports (C1+C2+A) 45W 15W (shared C2+A) 15W (shared C2+A) 60W

Note: The smart chip dynamically adjusts power based on connected devices. When three ports are active, USB-C1 maintains 45W, while USB-C2 and USB-A share the remaining capacity.

 

Key Features

1. Multifunctional Real-Time TFT Display

The high‑clarity TFT screen gives you complete charging transparency:

  • Cumulative usage time – track how long the charger has been running

  • Internal temperature – monitor operating conditions at a glance

  • Actual power output per port – see exactly how much juice each device is drawing

  • One‑click switch between display modes

2. 70W PD3.1 Ultra-Fast Charging

USB‑C1 supports the latest PD3.1 standard, delivering up to 70W – enough to fast‑charge large laptops and achieve 80% charge for an iPhone 16 Pro in just 30 minutes.

3. Charge 3 Devices Simultaneously

With 2 USB‑C and 1 USB‑A port, you can power your laptop, phone, and earbuds (or any combination) at the same time. The intelligent chip dynamically redistributes power to maximize speed while protecting your devices.

4. Advanced GaN Technology

Built with next‑generation GaN (Gallium Nitride) semiconductors, this charger is smaller, lighter, cooler, and more energy‑efficient than traditional silicon‑based chargers – perfect for home, office, and travel.

5. Wide Compatibility

Compatible with 99% of USB‑powered devices, including:

  • Laptops: MacBook Pro/Air, Dell XPS, HP Spectre, Lenovo, gaming laptops

  • Tablets: iPad Pro/Air, Samsung Galaxy Tab, Android tablets

  • Smartphones: iPhone 16/15/14 series, Samsung Galaxy, Huawei, Xiaomi, Google Pixel, OnePlus

  • Other devices: Nintendo Switch, power banks, wireless earbuds, Bluetooth speakers

6. Comprehensive Safety Protections

Built‑in multi‑layer protection ensures worry‑free charging:

  • Over‑voltage protection

  • Over‑current protection

  • Short‑circuit protection

  • Over‑temperature protection

  • Over‑power protection

  • Fireproof flame‑retardant housing

7. Compact & Travel‑Ready

With global 100‑240V input and a compact 57×51×56.9mm footprint, it fits easily into any bag – perfect for business trips, vacations, and daily commutes.

 

Applications

  • Business Travel – One compact charger for your laptop, phone, and accessories

  • Home Office – Keep your MacBook, iPad, and iPhone charged without cluttering multiple outlets

  • Student Dorm – Share with roommates; 3 ports cover everyone’s needs

  • Daily Carry – Lightweight and small, it slips into any backpack or briefcase

  • Coffee Shops & Co‑working – Charge multiple devices at your workspace without hogging power outlets

 

FAQ

General Questions

Q1: Can this charger power a 16‑inch MacBook Pro?
A: Yes. USB‑C1 delivers up to 70W, which is sufficient to fast‑charge most 16‑inch laptops, including the MacBook Pro, Dell XPS, and gaming laptops.

Q2: How fast does it charge an iPhone?
A: It can charge an iPhone 16 Pro to 80% in just 30 minutes using the USB‑C1 port with a compatible USB‑C to Lightning or USB‑C to USB‑C cable.

Q3: What exactly does the TFT display show?
A: The display shows:

  • Cumulative usage time (hours)

  • Internal temperature of the charger

  • Actual output power (W), voltage (V), and current (A) for each active port

Q4: What happens when I plug in multiple devices?
A: The built‑in smart chip automatically redistributes power. For example, with three ports active, USB‑C1 delivers 45W while USB‑C2 and USB‑A share the remaining capacity – ensuring all devices charge safely and efficiently.

Q5: Is the charger safe to leave plugged in overnight?
A: Yes. Multiple safety protections (over‑voltage, over‑current, short‑circuit, over‑temperature) combined with flame‑retardant housing ensure safe operation even during extended use.

Q6: What is GaN technology and why does it matter?
A: GaN (Gallium Nitride) is a next‑generation semiconductor material that allows chargers to be significantly smaller, cooler, and more power‑efficient than traditional silicon‑based chargers.

Q7: What is the length of the AC power cord?
A: The included AC power cable is 60cm long, providing flexible placement for your desktop setup.

B2B / OEM & ODM Questions

Q8: Do you offer OEM/ODM services for this charger?
A: Absolutely. As a direct factory manufacturer, we offer full OEM/ODM services including:

  • Custom logo printing on the housing

  • Custom packaging (retail boxes, bulk packaging, display cases)

  • Display UI customization (boot logo, color themes, layout adjustments)

  • Color variations (beyond standard black/white)

  • Custom AC cable length and plug types (US/EU/UK/AU)

Q9: What certifications are available?
A: Standard certifications include CE, FCC, and RoHS. Additional certifications (UL, ETL, PSE, UKCA, SAA, CB) can be arranged based on your target market.

Q10: What is the typical MOQ?
A: We offer flexible MOQs – from small trial orders to large wholesale volumes. Contact our sales team to discuss your specific requirements.

Q11: Can you customize the TFT display interface?
A: Yes. We offer ODM services for full display UI customization, including custom boot logos, color schemes, and information layout to match your brand identity.

Q12: What is the warranty period?
A: We offer a standard 12‑month warranty for bulk orders. Extended warranty options are available upon request.

Q13: What are the typical lead times for bulk orders?
A: Lead times typically range from 15–30 days for production after sample approval, depending on order volume and customization level.

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