Currtail Posted February 22, 2016 Share Posted February 22, 2016 Hi there, I know that this probably should be under all things that glow but it is more of a stage management thing than a purely electrical thing really. I am looking for B22 bayonet cap blue working light bulbs. we used to use 40W blue painted incandescents but they are so inefficient and very short lived. We have also used some low power LED bulbs for a while(3Watt?) but they weren't really bright enough and heave all been dropped or otherwise damaged now. Does anyone have a source or a product they would recommend? Cheers, Link to comment Share on other sites More sharing options...
nikkicallaghan Posted February 22, 2016 Share Posted February 22, 2016 Just as an aside. Why do we have blue workers as opposed to some other saturated color? Link to comment Share on other sites More sharing options...
timsabre Posted February 22, 2016 Share Posted February 22, 2016 These CFLs are quite good. Might be too bright, 15W = 100W incandescent and if you want a really deep blue you will need to stick some blue gel round them as well.http://www.bltdirect.com/energy-saving-spiral-15-watt-blue-bc http://static.bltdirect.com/cache/images/helix-15w-bc-bl-large-250x200.jpg Link to comment Share on other sites More sharing options...
dbuckley Posted February 22, 2016 Share Posted February 22, 2016 We did a DIY version of these blue CFLs, just painted the lamps. You can get paint from art shops intended for the purpose, its not so good on CFLs as incandescents as they don't get the heat to bake. Link to comment Share on other sites More sharing options...
david.elsbury Posted February 22, 2016 Share Posted February 22, 2016 You could get BC to GU10 adaptors and then run LED GU10s possibly? Link to comment Share on other sites More sharing options...
psychosoundman Posted February 22, 2016 Share Posted February 22, 2016 Just as an aside. Why do we have blue workers as opposed to some other saturated color? its a colour wavelight thing, also its a "soft" colour. The last thing you want on stage is a "bright" light source "leaking" out through curtains, Blue is on the lower end of the colour spectrum and is less likely to emit an offensive glow/beam, plus is is sufficiently bright enough to see in darkened areas. Link to comment Share on other sites More sharing options...
ninjadingle Posted February 23, 2016 Share Posted February 23, 2016 Just as an aside. Why do we have blue workers as opposed to some other saturated color? its a colour wavelight thing, also its a "soft" colour. The last thing you want on stage is a "bright" light source "leaking" out through curtains, Blue is on the lower end of the colour spectrum and is less likely to emit an offensive glow/beam, plus is is sufficiently bright enough to see in darkened areas. It also has the effect of making dayglo colours really fluoresce, so safety marking / spikes stand out a lot clearer in otherwise dark situations. Link to comment Share on other sites More sharing options...
Currtail Posted February 23, 2016 Author Share Posted February 23, 2016 Thanks guys, that's a real help, I never considered CFLs before, that's such a good idea! I guess I've been a bit LED focused of late. Cheers! Link to comment Share on other sites More sharing options...
nikkicallaghan Posted February 23, 2016 Share Posted February 23, 2016 1456222626[/url]' post='535197']1456181184[/url]' post='535187']1456166609[/url]' post='535180']Just as an aside. Why do we have blue workers as opposed to some other saturated color? its a colour wavelight thing, also its a "soft" colour. The last thing you want on stage is a "bright" light source "leaking" out through curtains, Blue is on the lower end of the colour spectrum and is less likely to emit an offensive glow/beam, plus is is sufficiently bright enough to see in darkened areas. It also has the effect of making dayglo colours really fluoresce, so safety marking / spikes stand out a lot clearer in otherwise dark situations. All those long years backstage and it never occurred to me before. Thx all Link to comment Share on other sites More sharing options...
LampTramp Posted March 11, 2016 Share Posted March 11, 2016 Just as an aside. Why do we have blue workers as opposed to some other saturated color? its a colour wavelight thing, also its a "soft" colour. The last thing you want on stage is a "bright" light source "leaking" out through curtains, Blue is on the lower end of the colour spectrum and is less likely to emit an offensive glow/beam, plus is is sufficiently bright enough to see in darkened areas. Actually if you look back into theatre history...looking back where we came from helps us to move forward and understand why things we do today are in fact based from traditions from many years ago.In the old days theatres ran alot of their exit signs and emergency lighting on gas...When the main burners in lamps were turned off the BLUE pilot light remand on....Actors were always told that if in a blackout and the could see the blue light in the wings clearly...all they had to do was head towards that light as the way would be clear........Noting to do with 'wavelength' at all I'm afraid... Just a bit of history!! Link to comment Share on other sites More sharing options...
alexforey Posted March 19, 2016 Share Posted March 19, 2016 Just as an aside. Why do we have blue workers as opposed to some other saturated color? its a colour wavelight thing, also its a "soft" colour. The last thing you want on stage is a "bright" light source "leaking" out through curtains, Blue is on the lower end of the colour spectrum and is less likely to emit an offensive glow/beam, plus is is sufficiently bright enough to see in darkened areas. Actually if you look back into theatre history...looking back where we came from helps us to move forward and understand why things we do today are in fact based from traditions from many years ago.In the old days theatres ran alot of their exit signs and emergency lighting on gas...When the main burners in lamps were turned off the BLUE pilot light remand on....Actors were always told that if in a blackout and the could see the blue light in the wings clearly...all they had to do was head towards that light as the way would be clear........Noting to do with 'wavelength' at all I'm afraid... Just a bit of history!! I thought that saturated red was much better, as you don't lose your night vision. All the lamps in all the booths I've ever worked in were red, so you could look down at your script and still see the stage when you look back up. It's also the reasoning behind the whole Flux/Night Shift thing. Although, blue light does suppress melatonin, so I guess it stops you falling asleep backstage? Link to comment Share on other sites More sharing options...
adam2 Posted August 24, 2016 Share Posted August 24, 2016 Red is indeed preferable for the preservation of night vision. Subdued red lighting is used at sea after dark in order to preserve the night vision. Some lifeboat houses are equipped with dim red lights for night launches, again for night vision preservation. However in a theatre it is almost never dark enough for true night vision to be required, all that really matters is that backstage lighting be subdued. I suspect that the preference for blue is simply traditional. Mains voltage GLS lamps are not readily available in less than 15 watt, and a white 15 watt lamp might be too bright in many circumstances. Simple to use a blue one. A possible drawback of red in a theatre is that it might be confused with a red warning light. Link to comment Share on other sites More sharing options...
NZ_Richard Posted September 26, 2018 Share Posted September 26, 2018 Hi I recently installed some of these as backstage lights for our school theatre https://www.aliexpress.com/item/1Pc-17cm-COB-DRL-LED-Daytime-Running-Lights-Auto-Lamp-External-Lights-For-Universal-Car-100/32851539365.html?spm=a2g0s.9042311.0.0.724c4c4d1EAeOG 12vdc 6w (0.5amp/light) - very deep blue - very bright.... - makes day glo paint shine... 0.90-1.34 NZ$ per unit - free shipped to NZ - made a cheap lighting system with a 12 volt 6 amp plug pack (https://www.aliexpress.com/item/12V-LED-Adapter-AC-220V-to-DC-12V-Power-Supply-1A-2A-3A-5A-6A-8A/32798856583.html?spm=a2g0s.9042311.0.0.724c4c4d1EAeOG) Link to comment Share on other sites More sharing options...
Robin D Posted September 26, 2018 Share Posted September 26, 2018 I'd be very worried about UV emissions especially if under them for any time. Nothing there to indicate that they are safe for continuous use. Link to comment Share on other sites More sharing options...
musht Posted September 26, 2018 Share Posted September 26, 2018 I'd be very worried about UV emissions especially if under them for any time. Nothing there to indicate that they are safe for continuous use. Certainly be negligble sub 400nm UV out of one , pay much more money for that, guessing the range of purple and blue will be from 405 purple to 450 odd nm blue. Most white LEDs use a blue , not UV , base LED with phosphor. Extended exposure to blue light and the blue peak in white LED is a whole other subject of debate... Link to comment Share on other sites More sharing options...
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