A prismatic dome that changes how a high bay throws its light This is the prismatic refractor made for Collingwood's Springbok Lite 200W high bay, order code HBL3REFR. It is a deep, bell shaped hood in clear polycarbonate, moulded with fine vertical ribs that break the light up as it passes through. Fitted over the lens of the high bay it tightens the spread to a medium 80 degree beam, and it turns a flat working glow into something with sparkle and shape. Collingwood states the refractor lifts light distribution efficiency by around 20 percent. The clear prismatic polycarbonate hood The refractor is moulded in one piece from polycarbonate, which keeps it to 1.2kg and makes it far easier to live with at ceiling height than glass. It is clear rather than opaque, with closely spaced prismatic ribs running from the open rim up to the crown. Lit, those ribs read as a bright faceted band. Unlit, the hood sits below the black finned body of the Springbok Lite and takes the hard edge off an otherwise very industrial silhouette, which is what makes it worth adding in a space people actually look at. It measures 413mm across and 230mm deep. How It Works On its own the Springbok Lite 200W puts out a wide 110 degree flood. The prismatic ribs on this hood refract that output and narrow it to 80 degrees, concentrating more of the light into the pool directly below while a little scatters sideways through the walls of the refractor. Two things change at once. The floor underneath gets a tighter, harder working pool of light, and the fitting itself stops reading as a dark shape with a bright hole in it. It is a retrofit accessory, so an existing high bay does not have to come down. The fixing screws are supplied and the hood attaches to the body of the luminaire in a few minutes. Nothing is rewired and nothing is disconnected, and whatever the fitting is hung from, jack chain, an M10 drop rod or catenary wire, stays exactly as it was. Where It Works Best This is an accessory for one specific fitting, so the question is less about decor and more about the job the light has to do. It earns its keep where a Springbok Lite is mounted lower than a typical warehouse roof and people are working or browsing directly underneath, because the narrower 80 degree beam puts light on the task rather than spilling it across the whole floor. Trade counters, workshops, garages and MOT bays, gyms and sports halls with a modest ceiling height, and showroom or warehouse style retail where the fitting is in plain view all suit it. The same goes for a barn conversion or a large domestic garage, where a bare high bay lens tends to look a bit too much like plant machinery. About Collingwood Lighting Collingwood designs and manufactures its LED products at Sywell in Northamptonshire, and has worked in LED technology and nothing else since 2002. The brand states it was among the first to put fire rated, fully sealed for life and mains dimmable LED products in front of the UK electrical wholesale trade. It has also been awarded an EcoVadis Gold medal, placing it in the top 5 percent of companies assessed worldwide for sustainability. Accessories like this one exist because the Springbok range is built to be adjusted after it is installed rather than ripped out and replaced. Good to Know Covered by a 4 year Collingwood warranty. Made for the Collingwood Springbok Lite 200W high bay. This is not a universal accessory and will not fit bays from other ranges or other manufacturers. Collingwood lists a separate refractor for its Area Bay range. Polycarbonate, 413mm diameter by 230mm high, 1.2kg. Allow for the extra depth below the luminaire when you set the suspension height. Purely optical and completely passive. There is no driver, no wiring and no electrical connection inside the refractor itself. Dimming and switching stay with the high bay and its own driver. Adding the refractor does not change how the luminaire is controlled. Fixing screws are supplied, so no extra parts are needed to retrofit it. Clean with a soft dry cloth. Keep solvents and abrasive cleaners away from it, as they can craze polycarbonate. Moonlight Design recommends installation by a registered NICEIC electrician. Questions People Ask What does the Collingwood HBL3REFR prismatic refractor actually do?The Collingwood HBL3REFR is a clear polycarbonate prismatic refractor that fits over the lens of a Springbok Lite 200W LED high bay. It narrows the beam to a medium 80 degrees and gives the fitting a faceted decorative lit effect instead of a plain flat glow. Collingwood states it improves light distribution efficiency by around 20 percent. Which light fitting does the HBL3REFR refractor fit?The HBL3REFR prismatic refractor is designed specifically for the Collingwood Springbok Lite 200W LED high bay. It is not a universal accessory, and Collingwood supplies a different refractor for its Area Bay range. Does the high bay have to be taken down to fit the refractor?No. The Collingwood prismatic refractor is designed to be retrofitted on site using the fixing screws supplied with it, so an existing Springbok Lite 200W can stay on its jack chain, M10 drop rod or catenary wire suspension while the refractor is added. How big is the Collingwood Springbok Lite prismatic refractor?The Collingwood Springbok Lite prismatic refractor measures 413mm in diameter and 230mm high, and weighs 1.2kg. It is moulded in clear polycarbonate. Does the refractor change the brightness or colour of the high bay?The refractor does not alter the wattage, the LED or the colour temperature of the Springbok Lite 200W, because it is a passive optic fitted outside the lens. What it changes is distribution, narrowing the beam from 110 degrees to 80 degrees so more light lands in the area directly below the fitting.
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