The issue with using a Photon in the kit isn't the switch latching on (that's very unlikely) but rather, the light getting squeezed under the weight of something, and draining its batteries that way. The light you want is the Countycomm $1 light which has a slide switch and NO squeeze-momentary function. Unfortunately, the white-led version is out of stock for now (expected back in October) but the blue and red versions are available. You can always swap the LED for another color (easy to do). lsdiodes.com is a good source of LED's with low shipping charges.