Brand: Summit Racing Manufacturer's Part Number: SUM-G1059-13 Part Type: Timing Lights Product Line: Summit Racing? Self-Powered Timing Lights Summit Racing Part Number: SUM-G1059-13 UPC: 190861047686 Power Supply: Two D batteries Works on Points Ignition: Yes Works on Electronic Ignition: Yes Works on Computer-Controlled Ignition: Yes Works on DIS Ignition: No Multi-Spark Compatible: Yes Advance Analog Dial Included: No LCD Readout: No Timing Light Material: Plastic Timing Light Finish: Black Backlit: No Inductive Pickup Included: Yes Dual Display Included: No Displays Advance Readout: No Displays Dwell Reading: No Displays Tachometer Reading: No Displays Volt Reading: No Quantity: Sold individually. Summit Racing? Self-Powered Timing Lights Summit Racing? self-powered timing lights provide an affordable and accurate way to check your engine's timing--without all the cords! Battery-operated timing lights are easy to use on any spark ignition engine， including those using a magneto. Their Xenon bulb produces a strobe powerful enough for visibility， even in the brightest sunlight. Enjoy performance tuning with economical， self-powered timing lights from Summit Racing?.