General requirements for a standard, signs, warnings and instructions (all products tested basis) 1) Each model must provide a separate nameplate 2) the text height of not less than 2mm, symbolic height of not less than 5mm 3) plate material must be resistant, waterproof 4) must have access to the bulb size and maximum power 5) on the lamp base with nameplate appropriate safety symbols such as double insulated "back" and 6) if the risk positions require a corresponding increase in warning to remind customers of Note 2 Note electric shock hazard: ground fault protection, insulation, creepage distances 1) Ground protection: a class insulation products, each user can directly touch the metal parts must have a good grounding resistance, earth resistance 2MΩ Reinforced insulation> 4MΩ high voltage test basic insulation 2U + 1000V additional insulation 2U + 1750V reinforced insulation 4U + 2750V time 1min, no breakdown / flash cell production line note 1.5KVAC / 1S / 5mA (a second class insulation products) durability test at room temperature 35 ° C (+/- 2%), 10 days / 7 days (21H open, 3H OFF) mark clear, distortion-free charred 3) creepage distance: between two conductive parts and between conductive parts and appliances, along insulation The shortest distance between the surface of the measured, 3, mechanical hazards: a reliable connection, a sharp edge protection) power connection point needs to be fixed well, the line deduction needs to withstand 60N, 25 times the pull wires can not displacement> 2mm, wire insulation lining the entrance needed mats, interior metal openings need insulation liner, head office must double insulation structure, lamp torque: E14, B15 must 1.2Nm; E27, B22 want 2.0Nm. And inclination of 6 ° to do stability testing. 2) the need for the sharp metal edge protection, can not scratch the wire. 4. Fire Hazards: Material Testing 1) For plastic materials, according to the performance of products with different temperature plastic material, the material must meet the test heat / fire test, usually using ball pressure / glow-wire / pin ball go far way to test pressure require the use of a metal ball with 125 ° 20N a beat after 1h, indentation diameter must not exceed 2mm require 650 ° glow wire flame ignite plastic materials, fire left off automatically within 30S, burning droplets can not be ignited tissue. 5, the risk of overheating: Temperature Test 1) temperature test, normal and abnormal temperature rise, the normal temperature is generally ordinary incandescent light bulbs rated power of 1.05 times, 1.06 times the lamp uses a transformer rated voltage, normal test 48 hours After the temperature does not exceed the rating. Non-normal temperature, under normal circumstances is not the product, such as dumping, adjustable, starter short circuit, short circuit transformer, motor stall, etc., the temperature within the limits, and no charred and deformed. 6, other dangers: UV radiation. Explosion