On the whole, I am satisfied (that they do not square is I did), here are some positive and negative aspects which have struck me over the years:
Positives:
+ The lamp looks very classy and is of the processing also quite OK. Maybe not a 380 processing level but a good one.
+ It is quite bright (as specified 1800Lumen, or about a 150W 200W bulb accordingly!)
+ The delay is quite short (maximum 0.3 s I would appreciate)
Neutral:
= The efficiency of LEDs is installed (with or without the imputed transformer losses) and fairly decent for 2012 appropriately with 55-66Lm / W. Meanwhile (2015) but there's also nearly twice as efficient LEDs create the> 100Lm / W.
= Light color is OK. Not for a cozy living room light, but for kitchen, bathroom or (in my case) Storage Room is super.
= Lamp is somewhat sensitive which transport (the no breaks) and construction terms (fingerprints wipe remember before assembling glass!)
= No way to change fancy LEDs. But heat dissipation seems to be a good solution to me, so they probably do not get broken (so far for me, no direct negative point).
Negatives:
- You flickers! In my view, though not always, but most especially in the period after power (?) Sometimes occurs to me when I have the lamp in the corner of your eye (in the outer areas the eye is more sensitive which flicker terms) a very clear (50Hz?) Flickering on! I have looked after it has annoyed me for years now two capacitors (470μF 100V) on the DC side behind the constant current transformers (2 pieces in it) soldered to the power supply of the LEDs to stabilize. I hope it helps, because the next alternative would be a better constant current transformer to the 2 supplied to replace and is not that cheap with the required specifications ...
