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Fenix LD01 Review

After reviewing the PD32 I would like to introduce a smaller torch that I have been carrying on my key ring for more than a year now: the Fenix LD01.

Delivery Contents

The torch comes in a compact box with the following extras:

  • A body clip
  • A small key ring
  • One spare o-ring
  • And a manual

Technical Specs

  • Cree XP-E LED (R2) with a lifespan of 50,000 hours
  • Uses one 1.5V AAA (Ni-MH, Alkaline) battery, inexpensive and widely available
  • Working voltage: 0.9~1.7V
  • 75mm (Length) x 14mm (Diameter)
  • Made of durable aircraft-grade aluminium
  • Premium Type III hard-anodized anti-abrasive finish
  • 14-gram weight (excluding batteries)
  • Waterproof to IPX-8 Standard
  • Toughened ultra-clear glass lens with anti-reflective coating
  • Reliable twist switch

Output Levels

Mid Low High
Lumens 28 9 85
Runtime 3.5h 11h 1h



The torch itself:

Disassembled into head (LED, reflector, twist switch) and body (holding the battery):

Some close-ups:

The LD01 on my key ring. It doesn’t look too bad considering that I’ve had it on there for over a year:


In order to turn the torch on the head has to be twisted (tightened). The torch will always start in medium mode. To activate the other modes the head has to be loosened and quickly tightened again. This way, the three modes will cycle in this order: Mid –> Low –> High.

Mode Comparison (indoors, iso-100)

My Opinion

It’s an ultra-compact, high-quality and powerful torch. Since it is not much bigger than a regular key it can easily be carried on a key ring without disturbing in the pocket. It feels of high quality and after a year of having it on my key ring I can say that it really is of high quality. The black color is scraped off a little bit (see photo) but apart from that the light is still working like on the first day. The head-switch is quite tight, so that an accidental activation is rather unlikely (never happened to me). There is nothing rattling and due to the flat bottom the light can be put down upright. The medium and high modes provide enough light to illuminate rooms. The battery life is pretty decent for a regular AAA battery. All in all it’s an awesome key chain light.

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