| 摘要 |
A lighting device (1) comprises a hollow stem (2) of an elongated and slim shape, provided with a lower end (21) and an upper end (22). The lighting device (1) comprises a base (3), positioned at the lower end (21) of the stem (2) and an optical group (5), positioned at the upper end (22) of the stem (2). The lighting device (1) further comprises a liquid cooling system (6), integrated inside the stem (2) and suitable for cooling the optical group (5). |
