You get a bit of a glow if you leave it under fluorescent lighting, but daylight is best. It's only ever going to be an ethereal glow rather than a shining beacon, in London there is so much artificial illumination at night that I'd be surprised if anybody could even tell it was supposed to be GITD.
You get a bit of a glow if you leave it under fluorescent lighting, but daylight is best. It's only ever going to be an ethereal glow rather than a shining beacon, in London there is so much artificial illumination at night that I'd be surprised if anybody could even tell it was supposed to be GITD.