The primary issue is suitability: I've read that LED bulbs suffer from poor heat dissipation, thus are unsuited for enclosed fixtures unless the bulb is 'enclosure-rated' (non rated bulbs are subject to shorter life spans and other problems in enclosed fixtures). I have yet to see (in any store or online) any LED bulb that actually is labelled for use in enclosed fixtures; staff at places like B&Q are clueless; and I am thinking that I might need to replace fixtures (but wish to avoid this, as I'm currently skint).
Any advice on what might actually work in these fixtures would be appreciated (photos attached):
- B22 bayonet bulb for bathroom ceiling fixture (currently 100W incandescent!)
- 8x G4 capsules for dining ceiling fixture (2 photos, currently 10w halogens in small enclosures). I have been told by a lighting professional (installer) that capsules are already designed to handle heat, and this should not be an issue. I don't know if he meant LEDs as well as halogens.
- GY6.35 capsules (4x desk lamps), both dimmable and non-dimmable needed (currently halogens). Two have a glass cover for the bulb; the other two are open (so enclosure is not an issue for the latter)
- G13 T8 tube (currently 58W 5200 lumen fluorescent, about as efficient as LEDs (lumens/watt)!). I haven't seen any T8 LED tubes as bright (lumens) as this one, so am thinking they might not exist and that I should just stick with a fluorescent until such time as I redo the kitchen lighting.