How many uplighters does our hall need?

As a rough guide, one every two to three metres of wall gives a continuous band of colour, and one every four to five metres reads as accents. Corners, pillars, banners and the stage edge all take one nicely. Tell us the size of the room and the look you want and we will suggest a number. Ask for as many as the event needs.

Will the battery really last the whole event?

On a single colour, yes, comfortably: up to 18 hours on a full charge. Colour fades and chases run about 8 hours and everything at full is nearer 4, with an eco mode that stretches multi-colour programmes further. Cold rooms shorten battery life, so charge fully the night before — 5 hours switched off. Any unit that lands near a socket can simply run on mains through its IEC inlet.

Can the colours change during the evening?

Yes, three ways. The IR remote changes colour, speed and mode from across the room, with the unit set as master. A W-DMX compatible wireless transmitter puts every unit on a lighting desk with no cable between them, and we can add the transmitter and desk to the hire. Or cable them with 3-pin XLR like any other DMX fixture, in 4, 6 or 11 channel modes. There is also a sound-active mode that moves with the music.

Can they go outside or in a marquee?

No. The Rapid QB1 is an indoor fixture with no IP rating, and the manufacturer is clear it must be kept away from rain and moisture. Weatherproof battery uplighters do exist, so if your event is under canvas or in the open, tell us and we will suggest something suitable.

Home Services Equipment Hire Stage Lighting Hire

Wireless uplighter hire — LEDJ Rapid QB1

Uplighting is the quickest way to make a plain hall feel dressed for the evening. Stand these along the walls, pick a colour, and the room changes. The LEDJ Rapid QB1 runs on its own battery and takes its instructions from a remote or wireless DMX, so there is nothing to plug in and no cable runs to tape down. It holds a colour for up to 18 hours on one charge, and hires at £10 per day.

The LEDJ Rapid QB1 is a compact battery uplighter built around four 8W quad-colour RGBA LEDs. The amber chip is the one that earns its keep: alongside the deep saturated colours you would expect, it mixes warm golds and soft pastels that make a room look inviting rather than lit. The unit is about the size of a biscuit tin and throws a 15 degree beam up the wall behind it. With no mains lead in use, it goes exactly where the room needs it rather than where the sockets are.

Inside is a 14.8V lithium battery good for up to 18 hours on a single colour, around 8 hours of colour fades and chases, or about 4 hours with every LED at full. An eco mode stretches multi-colour programmes further, and the display shows remaining charge so there are no surprises mid-event. Recharging takes 5 hours through an ordinary IEC mains lead with the unit switched off, and if a position happens to be near a socket, the unit will run on mains and charge as it goes.

Control suits whoever is running the evening. The supplied IR remote sets static colours, fades, sound-active and strobe from across the room. The on-board menu does the same, with 25 colour presets including proper white colour temperatures. For desk control there is built-in wireless DMX, compatible with W-DMX transmitters, and wired 3-pin XLR in and out for a conventional run. DMX modes are 4, 6 or 11 channels, and a group can follow one master unit so everything changes together.

Each unit weighs 3kg and stands 204mm tall. A fold-out foot angles the beam up to 25 degrees away from the wall, and there is an M12 rigging point and a safety bond eye if you would rather clamp one to a bar. It is an indoor fixture with no weather rating, so it stays inside.

Hire by the day, dry hire or with a technician to place the units, set the colour and have the room ready before anyone arrives.

What you get

The uplighter, charged and ready to place, with an IEC lead for recharging

The IR remote, so colours can be set from across the room

Wired DMX is 3-pin XLR if you would rather cable a run: tell us the distances and we will sort the leads

Not included as standard: a wireless DMX transmitter or a lighting desk. Both can be added if you want live control from the back of the room

A safety bond for any clamped overhead position — ask when you book if you are rigging rather than floor standing

Good for

School proms, awards evenings and leavers' events, where the sports hall has to stop looking like one

Village hall parties, anniversaries and receptions: colour along the walls with nothing to trip over

Front-of-house and foyer colour for dance school showcases and school productions

Am-dram and youth theatre sets: tucked behind a flat or into an alcove no cable could reach

Carol concerts and church events where taping cables across a floor is not an option

Exhibition stands and pop-up events in venues that will not allow trailing leads

What you need to know

What it does: Sits on the floor and throws colour up a wall. A few of them turn a plain hall into a dressed room.
Power: Its own battery: up to 18 hours on one colour, about 8 on fades, 4 flat out. Charges in 5 hours from an ordinary socket.
Control: The supplied IR remote works from across the room, or wireless DMX with a compatible transmitter. Wired DMX on 3-pin XLR if you prefer cables.
Where it goes: 3kg and 204mm tall. Floor standing on a tilting foot, or clamped by its M12 point. Indoors only — it has no weather rating.
Who runs it: Nobody needs to. Set a colour before doors open and it holds it all night.

Rates are per day and exclude VAT. A longer hire costs less per day — tell us your dates and we will price the period exactly. Ask us about delivery and hiring with a technician.

Full technical specification (20)

Manufacturer and model	LEDJ Rapid QB1
Order codes	LEDJ350 (black housing), LEDJ350A (white housing)
Fixture type	Battery-powered LED uplighter
Light source	4 x 8W quad-colour RGBA LEDs
Beam angle	15 degrees (field angle 29 degrees)
Output	1,551 lux at 2m, full on
Refresh rate	1.2kHz
Battery	14.8V 5,200mAh lithium
Run time	Up to 18 hours single colour; 8 hours colour change or fade; 4 hours full on
Charge time	5 hours powered off; 9 hours powered on
Control	IR remote (supplied), wireless DMX (W-DMX compatible), wired DMX, on-board menu with display
DMX channel modes	4, 6 or 11 channels
On board modes	Static colour, colour change, colour fade, auto, sound active, strobe, master/slave
Dimming	0–100%, with variable strobe
Connections	IEC power in and out, 3-pin XLR DMX in and out
Rigging	Adjustable foot to 25 degrees, M12 rigging point, safety bond point
Power supply	100-240V AC, 50/60Hz
Power draw	45
Weight	3
Dimensions	204 x 138 x 144 (H x W x D)

Common questions

As a rough guide, one every two to three metres of wall gives a continuous band of colour, and one every four to five metres reads as accents. Corners, pillars, banners and the stage edge all take one nicely. Tell us the size of the room and the look you want and we will suggest a number. Ask for as many as the event needs.
On a single colour, yes, comfortably: up to 18 hours on a full charge. Colour fades and chases run about 8 hours and everything at full is nearer 4, with an eco mode that stretches multi-colour programmes further. Cold rooms shorten battery life, so charge fully the night before — 5 hours switched off. Any unit that lands near a socket can simply run on mains through its IEC inlet.
Yes, three ways. The IR remote changes colour, speed and mode from across the room, with the unit set as master. A W-DMX compatible wireless transmitter puts every unit on a lighting desk with no cable between them, and we can add the transmitter and desk to the hire. Or cable them with 3-pin XLR like any other DMX fixture, in 4, 6 or 11 channel modes. There is also a sound-active mode that moves with the music.
No. The Rapid QB1 is an indoor fixture with no IP rating, and the manufacturer is clear it must be kept away from rain and moisture. Weatherproof battery uplighters do exist, so if your event is under canvas or in the open, tell us and we will suggest something suitable.