4W DC 3 3.7V LED Chip Bulb Aluminum COB Lamps Bulb White Light 6500K 400LM 300mA 100x8mm for Home Reading 3 Pack

The COB light bulb is a high-efficiency integrated surface light source technology in which LED light-emitting diode chips are directly attached to a metal substrate. widely use for lighting products such as flashlights stage lights downlights spotlights track lights etc. Advantage: LED light bulbs are made of aluminum material corrosion-resistant low power consumption energy-saving and long service life. LED chip bulb has stable electrical properties fast heat dissipation simple installation convenient use reduce the difficulty of lamp design save lamp processing and maintenance costs Instruction: This Lamp light bulb is easy to install by soldering. L is connected to the positive pole N is connected to the negative pole Notice: Please confirm the lamp voltage before purchasing