Caution: color: we ship according to the color of the first picture, in the package: if the quantity is not stated in the description, we will ship the item according to the quantity and model number in the title. Dental wireless led curing composite resin light 1s led curing light dental material one second curing lamp for curable resin| oral irrigators dental wireless led curing light blue cordless cure light lamp curing machine adjustable working time dental equipment tool dental clinic material features: thank you for choosing our led light curing machine. This instrument takes the high power pure blue led as light source. It's the new light curing machine which used with enhanced mode spot optical fiber light sticks. 1.Led light curing machine adopts the light-emitting diodes blue-ray, it can cure the resin with the wavelength of 420-480nm, and be used to repair the teeth in the department of stomatology; 2.There are three solidification working light modes: strong light mode, flashing light mode, gradual light mode. 3.The light-emitting diodes has long life, which can greatly reduce the costs of future maintenance of the machine; 4.Its does not produce any heat when running, so no need to cool it with fan, thus, it is free from the annoyance of noise and vibration of traditional machines; 5.The high capacity lithium ion battery can last about 130-200 times after being fully charged 4-8 hours . 6.Intelligent battery detection circuit function: when battery is low, it will alarm and the light will flash. 7.Lightweight and two-stage design, first low-light irradiation, and then glare rapid curing. 8.This can inhibit the excessive contraction of the resin surface, avoid cracks between cavities edge. Operation 1. You can set working modes and working time 5s-40s on this machine . 2. Working time setting press the"m" button for a while, when hear "di di" and light shine, press "p" button to choose the time, 5s- 40s is available. When you hear "di di" again and light stopping shinning, the time setting is done. 3. Working mode setting press button "m"to choose working modes, choose the mode you need. Technical data: battery voltage: 3. 7V package:23017253mm suitable temperature:5~50 gross weight: 0.57Kg input voltage: 110v-240vac, 50-60hz relative humidity: 1* user manual