Hi Tommy,

The kit cost about £5.00 GBP ( approx $10.00 ) complete with holder for 9.6volt PP3 battery here in the U.K.
Supplied by Maplin Electronics. http://www.maplin.co.uk/Search.aspx?...source=15&SD=Y
I added the red & green LED using a small resistor in the feed to each led, they are then powered off the 9.6volt battery supply, power taken from the on off switch.
The great thing about the kit was the low cost & ease of assembly.
Also as you can see from the photo of it you have a choice of fast & slow flash depending on switch position plus you can fine tune the flash speed even further with the rotary pot.
I must admit I did overheat one of the transistors when I soldered it up but they only cost 11 pence each so major hardship.
It is designed for 9.6volt std pp3 battery, but I am using a 8.4volt 400mah nicad, max power consumption is 40ma so it should run for over 10 Hours on one charge.
As photo it is a Vellman kit, their site being www.velleman.be or www.velleman-kit.com
Here is the link to USA site .
http://www.vellemanusa.com/us/enu/pr...iew/?id=351265
I hope this helps,
Regards,
John C
p.s. All I did was take the ultrabright white led's off the board and solder them onto some lengths of lightweight cable.
( Just checked web site price and adjusted this reply )