[remove/bypass ballast] This is a 20W lamp, before installing the bulb, check if there is a ballast on the circuit or lamp, if yes, remove/bypass it.A ballast is something that limits current.Suitable for halogen and incandescent bulbs, but not compatible LED bulbs.The ballast may cause the LED bulb to flicker or even not work.[Energy saving] 20W 650lm LED Spotlight bulb r7s j118 60W halogen replacement bulb.Energy consumption is reduced by 85% to 90% compared to fluorescent tubes.Not dimmable.[Environmental protection] High-brightness LED lighting, low power consumption.No lead or mercury, no ultraviolet or infrared radiation.[easy to install] r7s bulb.The 10W j118 r7s LED bulb is very thin and measures approximately 12mm in diameter.It is capable of installing most standard r7s LED lamps.[Application] widely used in indoor and outdoor, work and safety lamps, workshop lighting, storage, garage, stage and performance hall lamps, halogen lamps inLED ceramic, floor lamps, special lamps, general lighting. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia