Home Improvement: Philips 423400 8-Watt (50-Watt) R20 Indoor Flood LED Light Bulb, Dimmable - Philips Lighting
Home Improvement: KOBI ELECTRIC LED 8-watt (50 watt) R20 Warm White Light Bulb, Dimmable - Kobi Electric Inc
Home Improvement: Sylvania 14502 50 Watt PAR20 Narrow Flood Light Bulb / 30 Degree Beam Spread / 120 Volt / 50PAR20 - Sylvania
Automotive Parts and Accessories: Pilot Automotive (IL-194R-5) Red 5-SMD LED Dome Light Bulb - 2 Piece - Pilot Automotive
Home: LED Cool White Christmas Lights, 50 Bulbs - LED Christmas Lights
Home Improvement: Lightkiwi A6881 R20 Warm White Dimmable LED Wide Flood Light Bulb - 50 Watt Equivalent - Lightkiwi
Lighting: Triangle Bulbs T99005 7-Watt (50-Watt) R20 Indoor Flood LED Light Bulb, Soft white, 532 Lumens, 6-Pack - Triangle Bulbs
Automotive Parts and Accessories: SODIAL(R) 2 Pcs BA15S 1156 1141 Car Tail Brake Turn Light LED Bulbs 50-1210 SMD 12V White - SODIAL Retail Packaging - SODIAL
Home: SODIAL(R) LED MR16 Spotlight 12V 4W (340 Lumen - 50 Watt Equivalent) 3200K Warm 45 Degree Beam angle - SODIAL(R)
Lighting: Bioluz LED Br20 Smooth 7w (50w Equiv) 2700k 500 Lumen Lamp Dimmable
CE: R20 WARM WHT 3000K LED BULB REPLACES 50W (98558) * - Verbatim
Musical Instruments: LongStar 02145 - G-R40D-13W-50SO BR40 Flood LED Light Bulb - LongStar
Home Improvement: LED Lenser 880008 X21 7 LED Flashlight, Black - LED Lenser
Book: Green Lighting (Tab Green Guru Guides) - McGraw-Hill/TAB Electronics
Sports: CatEye Loop Bicycle Front and Rear Safety Light Kit SL-LD110 - Cateye
Automotive Parts and Accessories: Pilot Automotive (IL-1156R-15) Red 15-SMD LED Stop/Tail Light Bulb - 2 Piece - Pilot Automotive
Home Improvement: Miracle LED 603040 LED Blue Grow Lite, Indoor Gardening Bulb - Miracle LED
Home Improvement: KOBI ELECTRIC LED 18-watt (100 watt) R40 Cool White Light Bulb, Dimmable - Kobi Electric Inc
Network Media Player: 5x 1W High Power Red Led Lamp Light Bulb Beads 30~40Lm by A1store - A1store
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R50 Led Bulb Popular Q&A
Q: How to Buy LED Bulbs.
A: 1. Determine the wattage needed. For a table lamp, you only need about 3 watts but for lighting a room you need between 7 watts and 10 watts. 2. Determine the b... Read More »
Q: How to Build an LED Bulb.
A: 1. Solder the LEDs in series by connecting their leads and a chain, with each diode soldered to the positive or negative lead of its neighbor except for the fir... Read More »
Q: Why will my replacement R50 bulbs not work?
A: Try each of the new lamps in a lampholder that you know works, if none of the lamps light they must have all suffered damage (dropped) and the filaments are all... Read More »
Q: What is an LED bulb?
A: An LED bulb is made up of one or more light-emitting diodes, encased in plastic for protection. LEDs produce light much more efficiently than incandescent bulbs... Read More »
Q: Who invented led bulb?
A: it was invented in 1960 by Nick Holonyak. Read More »