| 摘要 |
An LED lamp tube (10) comprises a support substrate (11), a plurality of LEDs (110), a lamp base (13), a power supply (15), a lamp cover (17) and end covers (18). The LEDs (110) are arranged on the support substrate (11). The lamp base (13) is used for fixing the support substrate (11), and has an accommodation space (134). The power supply (15) is formed by a power supply housing (150) and a power supply circuit board arranged in the power supply housing (150). The power supply (15) is arranged in the accommodation space (134), and the power supply housing (150) is at least partially exposed outside the accommodation space (134). In this way, the heat dissipation performance of the power supply of the LED lamp tube (10) is improved effectively. |
