Collimated LED Curing Light

Collimated for a deeper, more reliable cure

Collimated Beam & Uniformity

Uncollimated LED curing lights deliver significantly less curing energy per depth of cure. As shown in Fig 1, the power of an uncollimated curing light quickly diminishes, offering very little curing energy for larger restorations.

The collimated beam of the Radii-Cal CX delivers curing uniformity across all curing depths. This ensures a fast and predictable cure for all restorations.

“What you are looking for is an optimally collimated beam. Think about a lighthouse, and the light coming out of the lighthouse. That is what you are looking for. You are looking for light that has a good output over distance.

Dr Richard Price

Enhanced heat management

Heat dissipation is critical for all curing lights. Increases in heat will reduce clinical performance and will reduce the life of a curing light.* The Radii-Cal CX includes heat sink dissipation technology. This technology protects the LED from damaging heat. By remaining cool, the Radii-Cal CX allows you ongoing consecutive cures without the need for a mandatory cool down. It also prolongs the life of the unit.

Lightweight & Ergonomic

The ergonomic and lightweight design minimises fatigue and maximises comfort. The handpiece weighs just 144g / 5.1oz.

Suitable for handling in a pencil or pistol grip, minimises hand and arm fatigue. The indentation for finger placement also provides ergonomic support when you are curing upper or lower quadrants.

Smart Battery

The Radii-Cal CX simply snaps into its docking station for easy ongoing charging. There is no need to unscrew or remove batteries for separate charging. The docking station will illuminate with five green lights to indicate a full charge.

Durable long life battery

The Radii-Cal CX does not require frequent recharging between patients. When fully charged, the Radii-Cal CX provides 1,200 x 10 second cures.

Sensitivity Protection Ramp

During the first 5 seconds, the Radii-Cal CX light output power gradually increases. This ‘soft-start’ polymerization minimises stress at the restoration-enamel/dentine junction and reduces marginal gaps in the restoration. ˆThis ensures longer integrity of your restoration and decreases post-op sensitivity.

Built In Radiometer

The Radii-Cal CX has a built-in radiometer to check the functionality of the unit. This radiometer is callibrated to the Radii-Cal CX power and collimated lens.

Optimal Wavelength Spectrum

The Radii-Cal CX LED targets the key 440-480nm wavelength, [fig 2] which maximises the activation of camphorquione monomers. This ensures efficient curing of light cured restoratives.

Easy to clean

The smooth gloss finish ensures no bacteria can collect on the surface making it fast and easy to clean. The perfectly fitted barrier sleeves provided prevent cross-contamination.

Replacement Lens Caps

Lens caps can be easily unscrewed and replaced. Other curing lights without replacable caps require a total unit replacement.

2 year warranty

The Radii-Cal CX’s robust and reliable construction assures your purchase is a long lasting investment.

Technical data

Handpiece (battery, control section and standard LED attachment)
Wavelength range: 440 nm – 480 nm
Peak wavelength range: 460 nm
Ramp to full intensity: 5 seconds
Light intensity: 1200 mW/cm2 (peak)
Duration of continuous use 20 seconds
Total continuous run time with fully charged battery: 3 hours, 20 minutes
Dimensions: 22 mm diameter x 243 mm long
Weight: 144 g / 5.1 ounces
Battery: Li-ion 7.4V/14 wh
Plug Pack
AC input: 100-240V ~ 0.8A, 50/60 Hz
DC Output: 12V 1.66A, 20.0W MAX
Dimensions: 34 mm (W) x 41 mm (H) x 62.5 mm (L)
Weight: 104 g / 3.6 ounces
Time to charge battery: 60 – 180 minutes
Operating temperature: 10°C – 40°C
Total height with handpiece inserted 255 mm
Dimensions: 70 mm (W) x 40 mm (H) x 130 mm (L)
Weight 84 g / 3 ounces

2 year manufacturing warranty on parts and battery

†Price, Richard, Achieving the best results with curing lights, (dpr.pdf

*Wahbi, Mohammed A et al. Characterization of heat emission of light-curing units. The Saudi dental journal vol. 24,2 (2012): 91-8. doi:10.1016/ entj.2012.01.003

ˆHeymann, H., Swift, E. J., Ritter, A. V., & Sturdevant, C. M. (2013) pg 180. Sturdevant’s art and science of operative dentistry. St. Louis, Mo: Elsevier/Mosby


Radii-Cal CX LED Light

  • 1 x Radii-Cal CX LED Curing Light
  • 1 x Recharger
  • 1 x Transformer
  • 3 x Replacement Lens Caps
  • Accessories


Replacement Parts and Accessories

Replacement parts and accessories which can be installed without special training or equipment, can also be obtained from your authorised SDI dealer.


Replacement Lens Caps (5 Pack)



Barrier Sleeves (1000 Pack)



Light Shield (5 Pack)



Radii-Cal CX Control Section



Radii-Cal CX Battery



Radii-Cal CX Charger (Includes Plug Pack)