Objectives: Purpose of this study was to determine and evaluate light intensity output of light curing devices in dental offices located in the city of Split. Materials and methods: 68 randomly chosen light curing devices were examined in this study. Evaluation of the results was based on the minimum intensity output of 400 mWcm2 needed for adequate composite curing. Measuring of the intensity was conducetd by Ivoclar Bluephase® Meter 2. Intensity output of every light curing device was measured three times provided that each measuring was divided into three separate measures at the start, in the middle, and at the end of the light curing program. Result (intensity output of the curing light) was an arithmetic mean of the taken measures. Type, manufacturing date and manufacturer of the light curing devices were also taken into consideration. Results: LED light curing devices are used in 97 % of dental offices in the city of Split, whereas halogen light curing devices are used in only 3 % of dental offices. Also, the relationship between the manufacturing date of light curing devices and the intensity of light was established. The average age of the light curing devices is 3,63 years. Older devices show a decrease in the light intensity output. 3,03 % of the light curing devices examined could not provide the minimum light intensity output of 400 mW/cm2. The average light intensity output of the light curing devices is 72,45 % of that declared by the manufacturer. Conclusion: According to the results of this study, use of LED light curing devices can be considered as the gold standard in dental offices in the city of Split. A very small number of investigated devices did not meet the minimal criteria for adequate light curing in terms of light intensity ouput. Furthermore, we found that the light intensity output values of light curing devices measured in this study differed significantly from the values declared by the manufacturer, especially considering the older curing devices.