I bought those bulbs at Lumimania.fr, online store that is based in the Czech Republic, E.E.C.
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LED Ampoule A60 E27/7,2W/230V 2700K CRI 94 Ra - 4.79€
Specs from online store :
Sample#1 :
Sample#2 :
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Ampoule LED A60 E27/12,5W/230V 4000K CRI 96 - 4.99€
Specs from online store :
Sample#3 :
Sample#4 :
Measurements are done with an Opple light master 3, naked bulb with its diffuser suspended at 1 meter above the Opple, in a dark room without reflective surface. To keep a “consistent” distance between the Opple and the bulb, I’m trying to set the LEDs MCPCB plate or the filament at 1m, independently of the size of the diffuser. A diffuser with a larger diameter will sit closer to the Opple but its emitter(s) will be at 1 meter.
For reference, Philips eco classic E27 230V - 28W halogen (worned out) :
To my eyes, both were a bit greenish at first but I’m better used to it now. R9 probably falls a bit short. Not exceptional but pretty good considering the price. Comfortable brightness when used in a triplette configuration with an Ikea NYMÅNE that has 3 sockets, ugly design but lots of light.