sorry to be so blatant, and although this has been discussed before, i believe it merits another view. Especially for those building a new darkroom, or just wanting the extra lighting without putting out to much dough.
Recently, a fellow (clothesontheline) was looking for a cheap alternative to safelights, given he was only gonna need it for a day or two to experiment with pinholes at a camp. Helping him look for alternatives i came across diy LED, to a countless others. Thankfully there is no need for that, as there is a company producing red LED's that do not need any fiddling around with and go into a normal light socket (e26, e27). TURNING ANY LAMP INTO A SAFELIGHT ( i personally think that is awesome). Someone had already done a 15 minute experiment with no visible fogging, and i did a 5 minute test at about 1 foot, with 0 fogging as well (at 635nm, i think it's pretty much impossible).
^^ here are examples as compared to regular 16 w "in the dark foto lamp" similar to a jr safelight.
I'm not affiliated, but i think this is so great!!!, i was dreading when my bulb was going to die, as i use an architect type lamp in order to avoid fogging, won't have to do that anymore. Again i noticed 0 fogging.
120V... please keep this in mind, as this won't be compatible in some countries.
I was using ilford mg1v rc and fiber
Link to LED safelight