Not so good like me, and reason for the devaluation:
- Lamp is quickly uncomfortably hot during continuous operation. This I can not this in operation long (> 10 minutes full luminosity) holding in his hand.
- Is the lamp become hot by continuous operation, these lights on and off by only about half as strong as previously illuminated. The returns to normal after the lamp has cooled.
Conclusion: For the price and the otherwise very good quality I expect a fully operational suitable lamp. However, this is not the case at least during continuous operation.