Petzl e+LITE Review

Overview

The Petzl e+LITE is not trying to compete with your 300-lumen primary light — and that’s exactly the point. It’s a super-ultralight headlamp designed to be stored for up to 10 years with its batteries, ready for use in an emergency. At 26 grams and smaller than a stack of quarters, it occupies the “backup and emergency” niche more completely than anything else on the market. Ultralight backpackers, thru-hikers, and anyone who wants a no-penalty insurance policy tucked into their kit will find a lot to like here.

Key Specs

Spec	Value
Weight	26 g (0.92 oz), without case
Max Output	40 lm (high white) / 15 lm (standard white)
Lighting Modes	White continuous (15 lm & 40 lm), white strobe, red continuous, red strobe
Beam Distance (max)	~10 m
Battery Runtime (high)	~9 hrs
Battery Runtime (low)	~12 hrs
Battery Runtime (red)	~15 hrs
Red Strobe Visibility	100 m for up to 70 hrs
Battery Type	2× CR2032 lithium (included)
Battery Shelf Life	10 years
Waterproof Rating	IPX7 (1 m for 30 min)
Temperature Range	-30°C to +60°C
Integrated Whistle	Yes
Includes	Hard carry case, swivel stand
Comparison	See how e+LITE compares to similar gear

Performance

Weight and Packability

This is where the e+LITE has no competition. This micro headlamp, the size of a small stack of quarters, is the lightest headlamp available at 26–27g by a large margin. It fits inside a pill-sized hard case that you can drop into a hip belt pocket, first aid kit, or the bottom of a stuff sack and genuinely forget it’s there. It’s so light you can toss it in your daypack — or even in your running sock — and not notice it. Since it weighs less than three AAA or AA batteries, it can serve as an alternative to carrying spare batteries and gives you the option of having two headlamps.

Light Output and Beam Quality

Let’s be honest about 40 lumens: it’s not a lot. There is no way around the fact that this is not a trail-finding powerhouse. It will get you out of a jam, but if you plan on hiking long distances at night, you’ll want a true trail-finding specialist like the Petzl Zipka, Tikkina, or Black Diamond Spot. One PCT hiker put it plainly: when hiking a mile or two to camp after dark, they were forced to walk slow to avoid injury and every time wished for a brighter headlamp.

Where the beam really earns its keep is up close. Working around camp or in the tent is where the e+LITE shines. It casts a nice even beam around you and is surprisingly effective for how small it is. The low setting is perfect for reading in a sleeping bag and prepping dinner; high is good for finding your way to the nearest tree at night. The wide flood pattern is a deliberate design choice for proximity work — it’s the right call for the intended use case.

The red mode preserves your night vision, which is great for stargazing, and also extends battery life.

On the red strobe setting, the light is visible at 100 meters for up to 70 hours

— a genuinely useful emergency signaling window.

One real-world concern worth flagging: CR2032 batteries maintain the same level of brightness without becoming dimmer as they drain — but then, with no battery indicator on the headlamp, you can suddenly be left without light. Carry a spare set of batteries on any trip longer than a weekend.

Controls and Usability

The rotary selector is one of the e+LITE’s best features. It has a manual lock that prevents accidental activation, as well as a self-documenting selector so you never have to guess how many swipes or clicks are needed to move from one mode to another. Every mode is physically labeled on the body — a real advantage when you’re fumbling for light at 3 a.m. in the dark. The selector is a little harder to figure out at first and is nearly impossible to use with gloves, but once accustomed to it, every user found it a simple and clear way to activate the different modes.

The ball-joint tilt mechanism lets you angle the beam independently of your head position, and a built-in swivel stand means you can position it at some place without the necessity to wear it, directing the light in any direction — handy for tent tasks when you don’t want a headlamp on your face.

A few users have noted that the switch mechanism can jam because of a tiny amount of dust over time. It’s not a widespread complaint, but worth keeping the carry case on it when stowed for long periods.

Durability and Weather Resistance

Outdoor Gear Lab testers put it through the washing machine by accident and it still works.

The IPX7 rating means it can withstand a 1-meter dunking for up to 30 minutes and shed plenty of rain.

The -30°C temperature rating matters more than it sounds — CR2032 lithium cells hold up in cold weather better than alkaline cells, which is a genuine advantage for winter adventurers and mountaineers.

Battery Logistics

The 10-year shelf life is the headline feature that sets this apart from a standard budget backup light. Ultra-lightweight and highly compact, the e+LITE can be stored in its carrying case with its batteries for 10 years so it’s always there when you need it. The trade-off is that CR2032 cells aren’t as universally available as AA or AAA batteries in small-town resupply stops. The hard-to-find, specialized battery makes it less suitable for an extended trip without carrying at least one spare set. Budget-wise, CR2032s are cheap enough in bulk — plan ahead and toss a spare pair in your kit.

Pros & Cons

Pros

• Lightest headlamp on the market at 26g — essentially zero weight penalty
• 10-year battery shelf life means it’s always “ready to go” without maintenance
• Self-documenting rotary selector makes mode switching foolproof in the dark
• Lock position prevents accidental activation in the pack
• IPX7-rated — genuinely submersion-proof
• Red mode preserves night vision; red strobe visible at 100m for up to 70 hours
• Wide flood beam excels at camp and tent tasks
• Integrated swivel stand for hands-free task lighting
• Rated to -30°C; lithium cells perform well in cold

Cons

• 40 lm max is insufficient for technical or fast night hiking
• No battery indicator — the lights just go out when cells are spent
• CR2032 batteries can be hard to source mid-trip at rural resupply points
• Rotary selector is nearly impossible to operate with gloves on
• Switch can accumulate dust and jam over time
• The integrated whistle is genuinely weak — treat it as a last resort, not a primary signaling device
• Thin elastic headband is functional but not the most comfortable on extended wear

Who Should Buy This

The e+LITE is purpose-built for ultralight backpackers and thru-hikers who carry a capable primary headlamp and need a featherweight backup that won’t be noticed in the pack. It’s also a great fit for first aid kits — whether camping, backpacking, or hunting. You should technically have a larger headlamp with you for all of these activities, but the e+LITE gives you a backup option if your primary fails when you need it most. It’s not the right choice if you’re planning any meaningful night hiking — for that, step up to a Petzl Tikka, Zipka, or similar. But as a “set it and forget it” emergency piece you stash and don’t think about for years? Nothing comes close.

Verdict

The Petzl e+LITE has a narrow but extremely well-defined job: be the lightest, most reliable, always-ready backup light possible. At that job, it’s nearly flawless. The 10-year battery life, IPX7 rating, extreme temperature tolerance, and idiot-proof rotary selector make it a genuine piece of safety equipment — not just a gram-counting novelty. Just don’t mistake it for a primary light on trips with planned night travel; pair it with a real trail headlamp and it earns every gram of the pack weight it doesn’t take up.