spectrums are on the spec sheet on the
www.ledgroupbuy.com link
these two colors are proven to work, some people do add blue and neutral white but the norm is cool white plus royal blue to make the colors really pop
as far as UPS goes, yes ill get charged brokerage fee but im doing their fast delivery which they cover brokerage costs. LEDs are on the no duty/tax list from what ive read.