I had some time looking for a replacement for my G4 lamps. This lamp can be compared by their brightness and tone perfectly with a halogen lamp. Only criticism (hence only 4 stars) - the lamp is unfortunately a relatively large and therefore not easily suitable for exchange in all lamps. The dimensions are exactly but indicated in the description; so I can not really complain. Tip: ... Measure beforehand - and then you can have fun with this LED