ToughButterCup Posted November 7, 2019 Posted November 7, 2019 Reading this section of the site, I'm sold on the idea of dimmable LEDs. We're thinking of dimming some LED strips, and a good few LED GU10s. Maybe my brain's too full of dripping roofs, stolen favourite tools and First Fixation circuitry: but where does the dimming actually occur? In an LED GU10 circuit, the bulbs need to be dimmable. But what about the driver / transformer? Does that need dimmability too? Do the same rules apply to LED Strip dimmers? And has anyone seen a Scolmore Click Mode Module dimmer switch - you know, the type that'll fit in a grid together with other switches?
ProDave Posted November 7, 2019 Posted November 7, 2019 First the lamps must be dimable. Then the switch must be compatible with LED's, sometimes described as a "leading edge" dimmer. There is no transformer with GU10's
Conor Posted November 7, 2019 Posted November 7, 2019 I have an LED dimmer switch and bulb in our living room. It's terrible. I suggest you try a couple setups before committing to anything expensive and permeant.
ToughButterCup Posted November 7, 2019 Author Posted November 7, 2019 Bleedin' edge dimmer eh? @Conor, I'm working on it... Do GU10s need to be Fire Rated if they are going to be put in the ceiling downstairs?
Onoff Posted November 7, 2019 Posted November 7, 2019 https://www.lightbulbs-direct.com/article/dimming-guide/
Construction Channel Posted November 7, 2019 Posted November 7, 2019 On 07/11/2019 at 16:43, AnonymousBosch said: Bleedin' edge dimmer eh? @Conor, I'm working on it... Do GU10s need to be Fire Rated if they are going to be put in the ceiling downstairs? Expand I remember hearing somewhere they need to be fire rated if below bedrooms. But I'm sure someone will know the actual rules
Dee J Posted November 7, 2019 Posted November 7, 2019 (edited) On 07/11/2019 at 17:24, Construction Channel said: I remember hearing somewhere they need to be fire rated if below bedrooms. But I'm sure someone will know the actual rules Expand Typically a single two-storey domestic residence is one 'fire zone' and thus does not require fire rated lights downstairs. If your house can have open stairs and doors without automatic closers then its one fire zone. Taller buildings, flats etc may well require fire rated fittings. Hth. Edited November 7, 2019 by Dee J 1
Pocster Posted November 7, 2019 Posted November 7, 2019 Automate while you can ! Qubino or fibaro dimmers . Go on make the leap !!!!
Mr Punter Posted November 7, 2019 Posted November 7, 2019 On 07/11/2019 at 17:31, Dee J said: Typically a single two-storey domestic residence is one 'fire zone' and thus does not require fire rated lights downstairs. If your house can have open stairs and doors without automatic closers then its one fire zone. Taller buildings, flats etc may well require fire rated fittings. Hth. Expand I have been told in the past by NHBC to limit the number of downlights or use fire rated ones as it may otherwise compromise the structure of the floor above. filedownload,84608,en.pdfFetching info...
ToughButterCup Posted November 7, 2019 Author Posted November 7, 2019 On 07/11/2019 at 16:53, Onoff said: https://www.lightbulbs-direct.com/article/dimming-guide/ Expand Sheeeeet . I didn't know I was sticking my [... ] in a hornets nest .
Onoff Posted November 7, 2019 Posted November 7, 2019 On 07/11/2019 at 19:48, AnonymousBosch said: Sheeeeet . I didn't know I was sticking my [... ] in a hornets nest . Expand Mismatching the minimum load rating of the dimmer switch vs the total LED wattage is a common mistake.
Temp Posted November 7, 2019 Posted November 7, 2019 On 07/11/2019 at 14:58, ProDave said: First the lamps must be dimable. Then the switch must be compatible with LED's, sometimes described as a "leading edge" dimmer. There is no transformer with GU10's Expand I thought trailing edge dimmers were better for LEDs?
ProDave Posted November 7, 2019 Posted November 7, 2019 On 07/11/2019 at 21:28, Temp said: I thought trailing edge dimmers were better for LEDs? Expand You might be right. Forget leading or trailing, does it say suitable for LED? 1
ToughButterCup Posted November 8, 2019 Author Posted November 8, 2019 On 07/11/2019 at 16:53, Onoff said: https://www.lightbulbs-direct.com/article/dimming-guide/ Expand Clive, yer a star. You've just saved me a good few quid. Thanks Ian
Onoff Posted November 8, 2019 Posted November 8, 2019 On 07/11/2019 at 21:28, Temp said: I thought trailing edge dimmers were better for LEDs? Expand Trailing edge for capacitive loads as in LV trannies full of "electronics" and drivers for LEDs. The dimmers themselves have more gubbins in them. (Because of the higher component count one could argue more to go wrong). Leading edge for inductive & resistive loads. They rely on chunky TRIACS, DIACS etc. A resistive load for example a good old fashioned incandescent or halogen "bulb". Leading edge dimmers really only for higher wattage stuff so they don't like the lower power requirements of LED stuff. An inductive load being say a motor. As for Click Mode bits do you mean these? https://www.click4electrics.co.uk/click-mini-grid-modules-dimmers-c-328_518_713/
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