That the type of strobe you just add to a regular incandescence string of C9's? Aka swap out the bulbs?
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Yes it is, and I actually just use my spools of SPT-2 (Stranded Parallel Thermoplastic-18AWG) and add light sockets because with the exception of my mega tree the 25 sockets just take too much space. I use one strobe on each mini tree and two on my 6' mini trees and I have also added strobes to my light towers as well. When you can buy the LED strobes for around $5.50/EA of (10 for $55) to quote CDI, it just made the most sense to me to spend my time on controls, decorations and other DIY projects for the season.
I have also used some incan strobes that were repurposed from a emergency vehicle lighting system I came across from a coompany name Whelen, however that meant adding a 120V to 12V converter, but those are wildly bright. I use them on a trane I built.