Fenix CL30R Power Lantern: Specifications, Modes and Safe Use

The Fenix CL30R is a rechargeable camping lantern that doubles as a small power bank, and it is the sort of light a household buys once and keeps for power cuts, camping and jobs in the loft. It runs on three 18650 lithium-ion cells, gives a maximum of 650 lumens, and on its lowest setting it will run for 300 hours on the batteries supplied¹. It is rated IPX-7, which means it is waterproof and floats, and it weighs 412 grams without batteries¹.

For an emergency kit, the useful numbers are these. On the three 2600 mAh cells in the box, the Eco setting of 10 lumens runs for 300 hours¹. Fit higher capacity 3500 mAh cells and the maker quotes 400 hours on Eco, 93 hours on Low, 51 hours on Mid, 12 hours on High and 6 hours on Turbo¹. The lantern charges over Micro USB using the cable supplied and any existing phone charger, and it can pass power out to a phone through its USB port, though only slowly¹.

This page sets out what the lantern is, what it can and cannot do, and how to charge, use and store it safely, using the maker's and UK distributor's own figures. It does not compare it with other lanterns or rank it against them; what suits you depends on what you already own and what you need it to do.

What the Fenix CL30R is and who it suits

The CL30R is a cylindrical lantern with a side switch, a flat base so it stands on a table, a hanging loop and a tripod mount¹. It is built from quality plastics and measures 136 mm long by 93 mm across, weighing 412 grams without batteries¹. That is light enough to carry in one hand and stable enough to stand on a kitchen worktop while you make tea in a power cut.

It suits a household that wants one light to do several jobs: lighting a room during an outage, lighting a tent or awning, and topping up a phone in an emergency. It is not a torch. It throws light in all directions rather than a beam you can point, so for checking a fuse box or walking to the meter cupboard a hand torch or head torch is the better tool; our page on torches for the home explains the difference, and lantern or torch sets the two side by side.

The IPX-7 rating is worth understanding. It means the lantern is waterproof and floats, so a knock into a bucket or a wet garden does not end it¹. Our guide to what IPX ratings mean explains the scale. It is not a diving light and the rating says nothing about dropping it, so treat it as a household light that tolerates weather rather than a rugged work light.

Specifications: size, weight, waterproofing and build

The table below sets out the maker's and distributor's figures for the lantern as sold in the UK. Where a figure comes from the distributor's product page, that is the source; the lantern is also listed in a Fenix searchlight specification sheet, which confirms the three 18650 cells².

The lantern is in stock with the UK distributor and with at least one UK retailer¹. Stock status changes, so check with the retailer before you rely on a delivery arriving before a forecast storm.

Brightness modes and how to switch between them

The CL30R has six modes: Eco, Low, Mid, High, Turbo and Flash¹. A single click of the side switch cycles through Eco, Low, Mid, High and then Turbo¹. The lantern remembers the last brightness level you used in General Mode, so it comes back on at the setting you left it at rather than always starting at the brightest¹.

That memory matters in an emergency. If you leave it on Low, a power cut at 2am gives you a gentle light rather than a 650 lumen glare that wakes the house. Set it to the level you want before you store it.

The run times depend on which batteries are fitted. With the supplied 2600 mAh cells, the maker quotes 300 hours on Eco at 10 lumens¹. With 3500 mAh cells, the maker quotes the following:

Our explainer on lumens, beam distance and run time sets out why output and duration pull against each other.

Charging the lantern by Micro USB

The CL30R charges over Micro USB, using the cable supplied in the box and your existing charger, such as a phone charger¹. Plug the cable into the lantern and the charger, and leave it until the indicator lights show a full charge. The lantern only lights up at Mid output while it is being charged, so do not expect to run it on Turbo with the cable attached¹.

The box contains the lantern, three ARB-L18 18650 batteries, a Micro USB cable, a spare o-ring and an instruction manual¹. You supply the wall charger. Use a charger you already trust for your phone rather than an unknown one from a drawer; our page on whether the wrong USB charger can damage a torch battery explains what to look for, and charging and storing rechargeable torches safely covers the general routine.

The power bank function has a capacity of 7800 mAh using the supplied batteries¹. That is enough for a slow top-up, not a full fast charge of a modern phone. If a charged phone matters to you in an outage, keep a separate power bank charged as well; official guidance for phone and broadband outages recommends a wind-up or battery FM radio for updates, and a charged phone for emergencies⁴.

Batteries: three 18650 cells you can replace

The lantern runs on one, two or three 18650 lithium-ion batteries, and three Fenix ARB-L18 2600 mAh cells come in the box¹. Being able to replace them is the point: when the cells eventually wear out, you fit new ones rather than replacing the whole lantern. The supplied 2600 mAh cells can be replaced with higher capacity cells up to 3500 mAh¹.

Fitting 3500 mAh cells is the single change that most extends the lantern's usefulness, because it lifts every run time in the table above¹. Buy cells from a reputable source and match them as a set; our guide to torch batteries, including 18650 cells, explains the sizes and what to look for.

The lantern has a cold resistant battery compartment for all weather use¹. Cold still reduces what a lithium-ion cell can deliver, so in a winter power cut keep the lantern and any spares indoors rather than in a cold shed or car boot, and bring it out when you need it. Our page on how long a camping lantern runs in a power cut puts these figures in context.

Storing it ready for an emergency

Official UK guidance is consistent on where emergency lighting belongs: somewhere you can reach it easily in the dark. A battery or wind-up torch should be left somewhere you can access easily so you can check the fuse box and make your way around the house safely⁵. The same logic applies to a lantern: keep it charged, in a known place, and check it before winter.

The Northern Powergrid power cut plan advises keeping an emergency kit in an easy-to-reach place and checking it is filled with the essentials⁶. The Northern Ireland household emergency kit guidance suggests gathering essential items before you leave your property and keeping them in the same place within the home⁷. The Scottish emergency kit guidance includes a phone charger in the kit⁸, and the UK travel advice includes a torch and in-car phone chargers or a power bank in a vehicle kit⁹.

A practical routine for the CL30R:

1. Charge it fully and check the indicator lights show four lights (over 85 per cent) before you put it away¹.
2. Store it with the three cells fitted, in a dry place you can reach in the dark, alongside a torch⁵.
3. Check it before winter and before any forecast storm, topping up the charge if needed⁶.
4. Keep the Micro USB cable with it, so you can charge from a phone charger or a car USB socket¹.
5. If you take it in the car, keep it with the rest of the vehicle kit: torch, warm clothes, food and water⁹.

What it can and cannot do in a power cut

In a power cut the CL30R does three things well. It lights a room from a table or a hanging point, it runs for days on its lowest setting, and it can top up a phone slowly. It does not replace a hand torch for close work, a head torch for jobs where you need both hands, or a proper power bank for fast charging.

The official advice for a power cut is to have a battery or wind-up torch stored where you can reach it, so you can check the fuse box and move around safely⁵. A lantern complements that: it lights the room while the torch checks the fuse box. Our guide to lighting your home safely when the power goes off covers the whole routine, and the power cut checklist is a printable list.

For households with older or disabled residents, a lantern that stands on a table and switches on with one press is easier than a torch that has to be held and aimed; our page on lights for older and disabled people in a power cut explains the options. For children, keep the lantern out of reach of very young children and explain the switch; our page on torches, candles and children covers the safety points.

Support and warranty

The UK distributor lists a 5 year UK warranty on the lantern and a 1 year warranty on the battery¹. Keep your proof of purchase and the instruction manual. If something goes wrong, contact the retailer you bought from first; they are responsible for the sale under UK consumer law, and the distributor's warranty sits alongside that.

The lantern is sold by Fenix's UK distributor and by UK retailers including Torch Direct, which lists it as in stock¹. Fenix also publishes other products in the same range, such as the Fenix LR80R searchlight, if you are looking at the wider range; our lighting section explains how lanterns, torches and head torches fit together in a household kit.