Features:<br />Note：Before using， please fix the product on the aluminum radiator. The middle of the aluminum material and the thermal conductive bead need to add thermal paste. The more the W number， the more aluminum you need！！！<br />Power:20W 30W 50W<br />Voltage:AC110V / 220V (No need power supply )<br />Color Rendering Index:Ra80<br />Color Temperature: White 6000-6500K，Warm White 2800-3200K<br />Beam angle :180 degree<br />Lifespan:10，000hrs<br />Housing material:Aluminum<br /><br />Do not need power supply，contact 220V/110V AC directly，Suiteable for DIY<br /><br />NOTES:<br />Package included in 1 pcs * Led Chip Lamp only.