1. 2mm acrylic (PMMA) cover (normal)  3-4mm acrylic(PMMA) cover (special)

2.0.4mm metal base with white powder painted

3.rubber seal around the base to keep from dust

4.E27 /2D/G10q lamp holder with connector on the base
5.Power  21w22w38w40w,55wetc.
6.Transmission of up to 60-75%, high temperature, long service life,

7.Not easy broken, the long-term use is not easy to turn yellow