UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

broadgage · 26th Feb 2018, 4:36 am

Regarding post #34, AFAIK, "Infraphil" branding only applied to the PAR 38 sized red coated infra red lamps, up to 150 watts or so.
The larger wattage and larger in dimension infra red lamps made by Philips were not branded Infraphil. I have a couple of 250 watt red coloured infra red lamps.

They are still widely used in zoos so as to warm animals that are used to tropical conditions, and on farms to warm young livestock
Some animal welfare experts consider that the clear infra red lamps should be used during daytime, so as to simulate the radiated warmth and illumination of sun light, and that the red coated lamps should be used at night so as to allow normal sleep without excessive glare.

26th Feb 2018, 4:36 am	#38
broadgage Nonode Join Date: Jan 2010 Location: North Somerset, UK. Posts: 2,129	Re: Heating Bulbs Regarding post #34, AFAIK, "Infraphil" branding only applied to the PAR 38 sized red coated infra red lamps, up to 150 watts or so. The larger wattage and larger in dimension infra red lamps made by Philips were not branded Infraphil. I have a couple of 250 watt red coloured infra red lamps. They are still widely used in zoos so as to warm animals that are used to tropical conditions, and on farms to warm young livestock Some animal welfare experts consider that the clear infra red lamps should be used during daytime, so as to simulate the radiated warmth and illumination of sun light, and that the red coated lamps should be used at night so as to allow normal sleep without excessive glare.