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Atlantus, underwater light, Brass, 12v, IP68

Atlantus 12v brass underwater spotlights are designed for submersion in water features, mounted on a bracket, base or spike mount or as a recessed light in cobbles etc. around water features and in other wet areas such as in bog gardens. A recess niche & sleeve convert Atlantus into a recessed up light for installation in paving and decking. They take MR16 LED lamps in a variety of beam angles and can use coloured filters and frosted lenses to cater for a wide range of creative garden lighting effects.  Underwater lighting will create a shimmering lighting effect if used in conjunction with moving water, and movement in lighting effects adds another dimension to creative garden lighting design. Try a colour changing led module for a rainbow colour change effect in smaller water features. A frosted lens can be substituted for the standard clear lens for diffused lighting. Clip-on colour filters, glare louvre and effects lenses may be fitted to the front of MR16 lamps inside the light for a variety of lighting effects.

LED lamps offer energy savings over the traditional halogen GU10 lamps and are also cool to touch and safe around children. Warm white and cool white are available and the cool white works well when illuminating shrubs and trees where as the warm white works better on brickwork and wood.

Typical energy savings using LED lamps


Low voltage is the safer option in the garden due to the ground being dug etc. You will need to use a transformer which matches the lamp voltage, for example if you had 6 fittings each with a MR16 5w lamp that would be 6 x 35w = 30 watts so you would need a transformer that was about 40 va as you need some spare capacity on it to function correctly. Standard MR16 LED lamps use a toroidal type transformer.

We recommend you use the heat shrink kits for cable jointing and also waterproof enclosures with the hard setting resin compound to minimise the risk of water ingress.

Please try and make all terminations above ground where there is less chance of water ingress. All installations should be done by a NIC EIC electrical contractor to ensure a safe and 100% water tight installation. Waterproof joint kits and boxes are available from our web site.

Example of transformer loadings



Direct connection to a transformer or junction box via 6 metre cable fitted. Stirrup bracket can be mounted on optional : custom mountings for deeper water can be assembled. With the stirrup bracket removed Atlantus is a good recessed light for use with small features or as an up light in lawns. Use E2560N recess niche & sleeve for recessed installation in paving and walls. Avoid cable joints underwater or in wet areas unless the joint is resin filled

All exterior lighting connections must be made 100% water tight and there are a number of waterproof transformers and connection boxes on our web site to choose from. The weakest point of any lighting installation is the connection of cables. Heat shrink cable joint kits are very good as are the waterproof enclosures with a resin filled gel. We recommend you choose a fully certified NIC EIC electrical contractor to carry out the work who has previous experience of external lighting installations.

Colour / Finish

Sandblasted natural brass


Pressure die-cast brass body with brass stirrup bracket. Heat resistant, flush tempered clear glass. Pre-wired with 6 metres of double insulated 1.5mm HO&-RNF cable via a brass cable gland and high temperature ‘O’ ring seal. Lens bezel & "U" bracket secured by stainless steel screws with allen key heads.

Input voltage

12 volts – requires power from a remote transformer

Lamp type

MR16 12v tungsten halogen reflector lamp or MR16 led modules (Order lamp separately) Use 50w underwater only; 35w maximum out of water. Use 10w or 20w lamp maximum or an led module for recessed in walkover surfaces to avoid hot lens


Spikes, extensions and bases are also available please call the office

Item Specifications

mounting: stirrup bracket, Spike Mount, Spike & Stem, Base Mount, Base & Stem