A 20W rechargeable LED floodlight with a 7.4V 4400mAh battery giving around 3 hours of runtime. No mains required. Available in cool white, daylight and warm white. Aluminium body, waterproof and corrosion resistant.
A 20W rechargeable LED floodlight that goes where the mains cable cannot. Whether you are working in a basement, a roof void, a plant room or anywhere else that power has not quite reached yet, this light gives you a solid three hours of runtime from a single charge. The 7.4V 4400mAh lithium battery is built in, the constant current driver is built in, and the SMD LED chips are efficient enough that you are not burning through that battery any faster than you need to.
The body is aluminium, which keeps the weight down and handles the knocks that site equipment tends to collect over a working week. It is corrosion resistant and rated to a high waterproof standard, so rain, damp conditions and the general hostility of a construction environment are not going to be a problem. This is not a light you need to wrap in a carrier bag when the weather turns.
Where a Rechargeable LED Floodlight Actually Earns Its Keep
The three colour temperature options are a genuinely useful feature rather than a marketing afterthought. Cool white is sharp and clinical, good for detailed work where you want contrast. Daylight sits in the middle and suits most general tasks. Warm white is easier on the eye over a long shift, and some trades prefer it for finishing work where you want to see how a surface will look under normal lighting conditions. Being able to pick the right one for the job is worth having.
The built-in constant current driver protects the LEDs from voltage fluctuations, which is one of the main reasons cheap floodlights fail early. It keeps the output stable and the chips running within their rated parameters, which means the light you get on hour three of a charge should look much the same as hour one.
At 20W with high efficiency SMD chips, this is bright enough for most site tasks without being so powerful it becomes impractical to carry around. Compact, self-contained, and ready to work anywhere you take it.
Pro Tip: Always store the floodlight with the battery at least half charged if it is going to sit unused for a few weeks, as fully discharging lithium cells between uses shortens their lifespan noticeably.
This floodlight is used wherever temporary lighting is needed without access to a mains supply. Electricians use them when working in consumer unit cupboards or wall voids before circuits are live. Groundworkers drop them into excavations. Roofers use them in loft spaces and flat roof access areas. It works equally well for plumbers tracing pipework under floors or behind panels, and for joiners fitting out rooms where the electrics are not connected yet.
It also has a place outside the trade environment entirely. Farmers, groundskeepers and facilities teams find a self-contained LED floodlight useful for outbuildings, machinery sheds and anywhere that a long extension lead is more hassle than it is worth.
Best For
Working in areas without mains power
Temporary site lighting
Loft and roof void work
Electrical first-fix stages
Groundworks and excavations
Outbuildings and remote locations
Available In
Cool White
Daylight
Warm White
Key Specifications
Power: 20W
Battery: 7.4V 4400mAh
Runtime: approximately 3 hours
LED type: SMD
Body: aluminium
Waterproof and airtight construction
Built-in constant current driver
Corrosion resistant finish
Not suitable for: Not suitable as a permanent fixed lighting installation. Runtime of approximately 3 hours means it is not intended for continuous multi-shift use without access to a charger between sessions.
Charge the unit fully before first use. The built-in driver handles the charge regulation, so there is no risk of overcharging if you leave it connected overnight. Select your preferred colour temperature before heading to site, as changing it mid-job is straightforward but worth sorting in advance.
The floodlight can be positioned on a flat surface or mounted using the adjustable bracket to direct the beam where it is needed. For work in confined spaces, angle the head away from eye level to avoid glare reflecting back off walls. Keep the lens free of dust and debris for consistent output.
Charge the floodlight fully before first use using the supplied charger
Select the required colour temperature for the job
Position the unit on a stable surface or attach using the adjustable bracket
Angle the head to direct light onto the work area, avoiding direct eye-level glare
Monitor runtime and return to charge before the battery is fully depleted
Store with at least a partial charge if not in use for an extended period
How long does the battery last on a full charge?
The 7.4V 4400mAh battery gives approximately 3 hours of working time at full output. Actual runtime may vary slightly depending on conditions and how the light is used.
Can this floodlight be used outdoors in wet conditions?
Yes. The unit is built to a high waterproof and airtight standard with a corrosion resistant aluminium body, making it suitable for outdoor use and damp site environments. It is not designed for permanent outdoor installation.
Can I change the colour temperature on site?
Yes. The three colour options, cool white, daylight and warm white, are selectable on the unit itself, so you can switch between them depending on the task or personal preference.
The floodlight uses SMD LED technology with a built-in constant current driver to maintain stable output throughout the discharge cycle. The aluminium housing provides effective heat dissipation, which is important for LED longevity at this power level. The 7.4V lithium cell chemistry offers a reasonable balance of energy density and cycle life when stored and charged correctly. The sealed construction provides waterproof and airtight performance suitable for site conditions.
Power
20W
Battery Voltage
7.4V
Battery Capacity
4400mAh
Runtime
Approximately 3 hours
LED Type
SMD
Body Material
Aluminium
Colour Temperature Options
Cool White, Daylight, Warm White
Driver
Built-in constant current driver
Waterproof Rating
High waterproof / airtight
SKU
RLE14802
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