These strobes are very bright. The led is a very efficent White LED from Cree. We stick 50 of them on a cable at 300mm spacing and are running strobe patterns with flashes well under 1ms. The result is really very spectacular, and they have proved relaible as well, we have several hundred strings installed and they have survived really nicely. Apologies, this was'nt a post hijack, but these might work well for you. NB, these are WHITE only, not RGB. While it can be done in RGB, usig White means that we can get a LOT LOT more light out of it. they retail for $US240 per string. In quanity the price comes down quite a lot.